[pve-devel] [PATCH V2 manager 3/3] cleanup: "var" to "let" in all javascript files

Stefan Hrdlicka s.hrdlicka at proxmox.com
Wed Jun 22 16:39:29 CEST 2022


this adds curly braces around "case:" statements so variable scope is limited

Signed-off-by: Stefan Hrdlicka <s.hrdlicka at proxmox.com>
---
 www/manager6/Parser.js                        |   8 +-
 www/manager6/StateProvider.js                 |   2 +-
 www/manager6/Utils.js                         | 139 +++++++++---------
 www/manager6/VNCConsole.js                    |  10 +-
 www/manager6/Workspace.js                     |  12 +-
 www/manager6/button/ConsoleButton.js          |   4 +-
 www/manager6/button/Split.js                  |  10 +-
 www/manager6/ceph/CephInstallWizard.js        |  36 ++---
 www/manager6/ceph/Config.js                   |  16 +-
 www/manager6/ceph/Crush.js                    |   6 +-
 www/manager6/ceph/FS.js                       |   6 +-
 www/manager6/ceph/Log.js                      |   6 +-
 www/manager6/ceph/Pool.js                     |  10 +-
 www/manager6/ceph/Services.js                 |  12 +-
 www/manager6/ceph/Status.js                   |  16 +-
 www/manager6/ceph/StatusDetail.js             |   4 +-
 www/manager6/controller/StorageEdit.js        |   4 +-
 www/manager6/data/PermPathStore.js            |   2 +-
 www/manager6/data/ResourceStore.js            |   4 +-
 www/manager6/dc/ACLView.js                    |   6 +-
 www/manager6/dc/ACMEPluginEdit.js             |   2 +-
 www/manager6/dc/AuthEditBase.js               |   4 +-
 www/manager6/dc/AuthView.js                   |   2 +-
 www/manager6/dc/Backup.js                     |  14 +-
 www/manager6/dc/BackupJobDetail.js            |  10 +-
 www/manager6/dc/ClusterEdit.js                |   6 +-
 www/manager6/dc/Config.js                     |   4 +-
 www/manager6/dc/GroupEdit.js                  |   6 +-
 www/manager6/dc/GroupView.js                  |  22 +--
 www/manager6/dc/MetricServerView.js           |   2 +-
 www/manager6/dc/NodeView.js                   |   2 +-
 www/manager6/dc/OptionView.js                 |  10 +-
 www/manager6/dc/PoolView.js                   |  22 +--
 www/manager6/dc/RoleEdit.js                   |  10 +-
 www/manager6/dc/SecurityGroups.js             |  10 +-
 www/manager6/dc/Summary.js                    |  20 +--
 www/manager6/dc/Support.js                    |  16 +-
 www/manager6/dc/Tasks.js                      |   6 +-
 www/manager6/dc/UserEdit.js                   |   4 +-
 www/manager6/dc/UserView.js                   |  10 +-
 www/manager6/form/AgentFeatureSelector.js     |   2 +-
 www/manager6/form/BridgeSelector.js           |   6 +-
 www/manager6/form/BusTypeSelector.js          |   2 +-
 www/manager6/form/CephFSSelector.js           |   4 +-
 www/manager6/form/CephPoolSelector.js         |   4 +-
 www/manager6/form/ContentTypeSelector.js      |   2 +-
 www/manager6/form/ControllerSelector.js       |   2 +-
 www/manager6/form/DayOfWeekSelector.js        |   2 +-
 www/manager6/form/DiskStorageSelector.js      |  24 +--
 www/manager6/form/FileSelector.js             |   8 +-
 www/manager6/form/GlobalSearchField.js        |  14 +-
 www/manager6/form/GroupSelector.js            |   4 +-
 www/manager6/form/GuestIDSelector.js          |  12 +-
 www/manager6/form/HotplugFeatureSelector.js   |   6 +-
 www/manager6/form/IPRefSelector.js            |  10 +-
 www/manager6/form/MDevSelector.js             |   8 +-
 www/manager6/form/MemoryField.js              |  32 ++--
 www/manager6/form/NodeSelector.js             |   2 +-
 www/manager6/form/PCISelector.js              |   6 +-
 www/manager6/form/PoolSelector.js             |   4 +-
 www/manager6/form/QemuBiosSelector.js         |   2 +-
 www/manager6/form/SDNControllerSelector.js    |   4 +-
 www/manager6/form/SDNDnsSelector.js           |   4 +-
 www/manager6/form/SDNIpamSelector.js          |   4 +-
 www/manager6/form/SDNVnetSelector.js          |   4 +-
 www/manager6/form/SDNZoneSelector.js          |   4 +-
 www/manager6/form/SecurityGroupSelector.js    |   4 +-
 www/manager6/form/SnapshotSelector.js         |   6 +-
 www/manager6/form/SpiceEnhancementSelector.js |   8 +-
 www/manager6/form/StorageSelector.js          |   8 +-
 www/manager6/form/USBSelector.js              |   6 +-
 www/manager6/form/VLanField.js                |   4 +-
 www/manager6/form/VMCPUFlagSelector.js        |  30 ++--
 www/manager6/form/VMSelector.js               |  12 +-
 www/manager6/grid/BackupView.js               |  36 ++---
 www/manager6/grid/FirewallAliases.js          |   4 +-
 www/manager6/grid/FirewallOptions.js          |  18 +--
 www/manager6/grid/FirewallRules.js            |  64 ++++----
 www/manager6/grid/PoolMembers.js              |  32 ++--
 www/manager6/grid/Replication.js              |  20 +--
 www/manager6/grid/ResourceGrid.js             |   4 +-
 www/manager6/ha/Fencing.js                    |   4 +-
 www/manager6/ha/GroupEdit.js                  |  12 +-
 www/manager6/ha/GroupSelector.js              |   2 +-
 www/manager6/ha/Groups.js                     |  10 +-
 www/manager6/ha/ResourceEdit.js               |  28 ++--
 www/manager6/ha/Status.js                     |   2 +-
 www/manager6/ha/StatusView.js                 |   8 +-
 www/manager6/lxc/Config.js                    |  42 +++---
 www/manager6/lxc/CreateWizard.js              |   2 +-
 www/manager6/lxc/DNS.js                       |  50 +++----
 www/manager6/lxc/FeaturesEdit.js              |  10 +-
 www/manager6/lxc/MPEdit.js                    |   8 +-
 www/manager6/lxc/MPResize.js                  |  18 +--
 www/manager6/lxc/Options.js                   |  28 ++--
 www/manager6/lxc/ResourceEdit.js              |  14 +-
 www/manager6/lxc/Resources.js                 |  42 +++---
 www/manager6/node/ACME.js                     |  16 +-
 www/manager6/node/Certificates.js             |   4 +-
 www/manager6/node/Config.js                   |  20 +--
 www/manager6/node/Directory.js                |   2 +-
 www/manager6/node/LVMThin.js                  |   2 +-
 www/manager6/node/StatusView.js               |   4 +-
 www/manager6/node/Subscription.js             |  34 ++---
 www/manager6/node/Summary.js                  |  18 +--
 www/manager6/node/ZFS.js                      |   4 +-
 www/manager6/panel/ConfigPanel.js             |  58 ++++----
 www/manager6/panel/GuestStatusView.js         |  16 +-
 www/manager6/panel/GuestSummary.js            |  16 +-
 www/manager6/panel/HealthWidget.js            |   4 +-
 www/manager6/panel/IPSet.js                   |  62 ++++----
 www/manager6/panel/RunningChart.js            |   4 +-
 www/manager6/panel/StatusPanel.js             |  14 +-
 www/manager6/panel/TemplateStatusView.js      |   4 +-
 www/manager6/pool/Config.js                   |   4 +-
 www/manager6/pool/StatusView.js               |   6 +-
 www/manager6/pool/Summary.js                  |   8 +-
 www/manager6/qemu/AgentIPView.js              |  40 ++---
 www/manager6/qemu/AudioEdit.js                |   6 +-
 www/manager6/qemu/CDEdit.js                   |  32 ++--
 www/manager6/qemu/CIDriveEdit.js              |  16 +-
 www/manager6/qemu/CloudInit.js                |  68 ++++-----
 www/manager6/qemu/Config.js                   |  52 +++----
 www/manager6/qemu/CreateWizard.js             |  14 +-
 www/manager6/qemu/HDEdit.js                   |  38 ++---
 www/manager6/qemu/HDEfi.js                    |  12 +-
 www/manager6/qemu/HDResize.js                 |  14 +-
 www/manager6/qemu/HDTPM.js                    |  14 +-
 www/manager6/qemu/HardwareView.js             |  58 ++++----
 www/manager6/qemu/IPConfigEdit.js             |  24 +--
 www/manager6/qemu/KeyboardEdit.js             |   2 +-
 www/manager6/qemu/MemoryEdit.js               |  32 ++--
 www/manager6/qemu/Monitor.js                  |  39 ++---
 www/manager6/qemu/NetworkEdit.js              |  24 +--
 www/manager6/qemu/OSDefaults.js               |   2 +-
 www/manager6/qemu/OSTypeEdit.js               |  20 +--
 www/manager6/qemu/Options.js                  |  36 ++---
 www/manager6/qemu/PCIEdit.js                  |   8 +-
 www/manager6/qemu/ProcessorEdit.js            |  18 +--
 www/manager6/qemu/RNGEdit.js                  |   6 +-
 www/manager6/qemu/SSHKey.js                   |  12 +-
 www/manager6/qemu/ScsiHwEdit.js               |   2 +-
 www/manager6/qemu/SerialEdit.js               |  12 +-
 www/manager6/qemu/Smbios1Edit.js              |  14 +-
 www/manager6/qemu/SystemEdit.js               |   4 +-
 www/manager6/qemu/USBEdit.js                  |  20 +--
 www/manager6/sdn/Browser.js                   |   8 +-
 www/manager6/sdn/ControllerView.js            |   6 +-
 www/manager6/sdn/Status.js                    |   2 +-
 www/manager6/sdn/StatusView.js                |   8 +-
 www/manager6/sdn/SubnetEdit.js                |   2 +-
 www/manager6/sdn/SubnetView.js                |   2 +-
 www/manager6/sdn/VnetEdit.js                  |   2 +-
 www/manager6/sdn/VnetPanel.js                 |   6 +-
 www/manager6/sdn/VnetView.js                  |   2 +-
 www/manager6/sdn/ZoneContentView.js           |  14 +-
 www/manager6/sdn/ZoneView.js                  |   2 +-
 www/manager6/sdn/controllers/Base.js          |  10 +-
 www/manager6/sdn/controllers/BgpEdit.js       |   4 +-
 www/manager6/sdn/controllers/EvpnEdit.js      |   2 +-
 www/manager6/sdn/dns/Base.js                  |  12 +-
 www/manager6/sdn/dns/PowerdnsEdit.js          |   4 +-
 www/manager6/sdn/ipams/Base.js                |  12 +-
 www/manager6/sdn/ipams/NetboxEdit.js          |   4 +-
 www/manager6/sdn/ipams/PVEIpamEdit.js         |   4 +-
 www/manager6/sdn/ipams/PhpIpamEdit.js         |   4 +-
 www/manager6/sdn/zones/Base.js                |  12 +-
 www/manager6/sdn/zones/EvpnEdit.js            |   4 +-
 www/manager6/sdn/zones/SimpleEdit.js          |   4 +-
 www/manager6/sdn/zones/VlanEdit.js            |   4 +-
 www/manager6/sdn/zones/VxlanEdit.js           |   4 +-
 www/manager6/storage/BackupView.js            |  16 +-
 www/manager6/storage/Browser.js               |   8 +-
 www/manager6/storage/CIFSEdit.js              |  12 +-
 www/manager6/storage/CephFSEdit.js            |   2 +-
 www/manager6/storage/ContentView.js           |   4 +-
 www/manager6/storage/DirEdit.js               |   2 +-
 www/manager6/storage/GlusterFsEdit.js         |  12 +-
 www/manager6/storage/ImageView.js             |  22 +--
 www/manager6/storage/NFSEdit.js               |  24 +--
 www/manager6/storage/PBSEdit.js               |   2 +-
 www/manager6/storage/RBDEdit.js               |  12 +-
 www/manager6/storage/Summary.js               |  10 +-
 www/manager6/storage/TemplateView.js          |  36 ++---
 www/manager6/storage/ZFSEdit.js               |   6 +-
 www/manager6/tree/SnapshotTree.js             |  12 +-
 www/manager6/window/Backup.js                 |  18 +--
 www/manager6/window/BackupConfig.js           |   4 +-
 www/manager6/window/BulkAction.js             |  16 +-
 www/manager6/window/Clone.js                  |  38 ++---
 www/manager6/window/DownloadUrlToStorage.js   |   4 +-
 www/manager6/window/FirewallEnableEdit.js     |   2 +-
 www/manager6/window/FirewallLograteEdit.js    |   2 +-
 www/manager6/window/LoginWindow.js            |  62 ++++----
 www/manager6/window/Migrate.js                |  16 +-
 www/manager6/window/Prune.js                  |   6 +-
 www/manager6/window/Settings.js               |  26 ++--
 www/manager6/window/Snapshot.js               |   4 +-
 www/manager6/window/StartupEdit.js            |  10 +-
 www/manager6/window/Wizard.js                 |   4 +-
 200 files changed, 1339 insertions(+), 1337 deletions(-)

diff --git a/www/manager6/Parser.js b/www/manager6/Parser.js
index 9f7b2c84..044e4be7 100644
--- a/www/manager6/Parser.js
+++ b/www/manager6/Parser.js
@@ -79,7 +79,7 @@ Ext.define('PVE.Parser', {
     },
 
     printPropertyString: function(data, defaultKey) {
-	var stringparts = [],
+	let stringparts = [],
 	    gotDefaultKeyVal = false,
 	    defaultKeyVal;
 
@@ -150,7 +150,7 @@ Ext.define('PVE.Parser', {
     },
 
     printQemuNetwork: function(net) {
-	var netstr = net.model;
+	let netstr = net.model;
 	if (net.macaddr) {
 	    netstr += "=" + net.macaddr;
 	}
@@ -195,7 +195,7 @@ Ext.define('PVE.Parser', {
 	    index,
 	};
 
-	var errors = false;
+	let errors = false;
 	Ext.Array.each(value.split(','), function(p) {
 	    if (!p || p.match(/^\s*$/)) {
 		return undefined; // continue
@@ -236,7 +236,7 @@ Ext.define('PVE.Parser', {
     },
 
     printQemuDrive: function(drive) {
-	var drivestr = drive.file;
+	let drivestr = drive.file;
 
 	Ext.Object.each(drive, function(key, value) {
 	    if (!Ext.isDefined(value) || key === 'file' ||
diff --git a/www/manager6/StateProvider.js b/www/manager6/StateProvider.js
index fafbb112..bd4c1160 100644
--- a/www/manager6/StateProvider.js
+++ b/www/manager6/StateProvider.js
@@ -228,7 +228,7 @@ Ext.define('PVE.StateProvider', {
         let me = this;
 
 	if (typeof me.UIState[name] !== "undefined") {
-	    var newvalue = value ? value.value : null;
+	    let newvalue = value ? value.value : null;
 	    if (me.setHV(name, newvalue, fireevent)) {
 		let htext = me.encodeHToken(me.UIState);
 		Ext.History.add(htext);
diff --git a/www/manager6/Utils.js b/www/manager6/Utils.js
index 7ca6a271..bc43ac43 100644
--- a/www/manager6/Utils.js
+++ b/www/manager6/Utils.js
@@ -77,7 +77,7 @@ Ext.define('PVE.Utils', {
 	    state = 'uknown';
 	}
 
-	var icon = 'faded fa-question';
+	let icon = 'faded fa-question';
 	switch (state) {
 	    case 'good':
 		icon = 'good fa-check';
@@ -110,7 +110,7 @@ Ext.define('PVE.Utils', {
 	}
 
 	if (service.ceph_version) {
-	    var match = service.ceph_version.match(/version (\d+(\.\d+)*)/);
+	    let match = service.ceph_version.match(/version (\d+(\.\d+)*)/);
 	    if (match) {
 		return match[1];
 	    }
@@ -158,8 +158,8 @@ Ext.define('PVE.Utils', {
     },
 
     get_ceph_icon_html: function(health, fw) {
-	var state = PVE.Utils.map_ceph_health[health];
-	var cls = PVE.Utils.get_health_icon(state);
+	let state = PVE.Utils.map_ceph_health[health];
+	let cls = PVE.Utils.get_health_icon(state);
 	if (fw) {
 	    cls += ' fa-fw';
 	}
@@ -219,7 +219,7 @@ Ext.define('PVE.Utils', {
     },
 
     render_ceph_health: function(healthObj) {
-	var state = {
+	let state = {
 	    iconCls: PVE.Utils.get_health_icon(),
 	    text: '',
 	};
@@ -228,7 +228,7 @@ Ext.define('PVE.Utils', {
 	    return state;
 	}
 
-	var health = PVE.Utils.map_ceph_health[healthObj.status];
+	let health = PVE.Utils.map_ceph_health[healthObj.status];
 
 	state.iconCls = PVE.Utils.get_health_icon(health, true);
 	state.text = healthObj.status;
@@ -240,7 +240,7 @@ Ext.define('PVE.Utils', {
 	if (typeof value === 'undefined') {
 	    return "";
 	}
-	var iconCls = 'question-circle';
+	let iconCls = 'question-circle';
 	switch (value) {
 	    case 'AVAIL':
 	    case 'ONLINE':
@@ -325,12 +325,12 @@ Ext.define('PVE.Utils', {
     },
 
     render_backup_days_of_week: function(val) {
-	var dows = ['sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'];
-	var selected = [];
-	var cur = -1;
+	let dows = ['sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'];
+	let selected = [];
+	let cur = -1;
 	val.split(',').forEach(function(day) {
 	    cur++;
-	    var dow = (dows.indexOf(day)+6)%7;
+	    let dow = (dows.indexOf(day)+6)%7;
 	    if (cur === dow) {
 		if (selected.length === 0 || selected[selected.length-1] === 0) {
 		    selected.push(1);
@@ -347,7 +347,7 @@ Ext.define('PVE.Utils', {
 	});
 
 	cur = -1;
-	var days = [];
+	let days = [];
 	selected.forEach(function(item) {
 	    cur++;
 	    if (item > 2) {
@@ -394,7 +394,7 @@ Ext.define('PVE.Utils', {
     },
 
     get_kvm_osinfo: function(value) {
-	var info = { base: 'Other' }; // default
+	let info = { base: 'Other' }; // default
 	if (value) {
 	    Ext.each(Object.keys(PVE.Utils.kvm_ostypes), function(k) {
 		Ext.each(PVE.Utils.kvm_ostypes[k], function(e) {
@@ -408,7 +408,7 @@ Ext.define('PVE.Utils', {
     },
 
     render_kvm_ostype: function(value) {
-	var osinfo = PVE.Utils.get_kvm_osinfo(value);
+	let osinfo = PVE.Utils.get_kvm_osinfo(value);
 	if (osinfo.desc && osinfo.desc !== '-') {
 	    return osinfo.base + ' ' + osinfo.desc;
 	} else {
@@ -417,7 +417,7 @@ Ext.define('PVE.Utils', {
     },
 
     render_hotplug_features: function(value) {
-	var fa = [];
+	let fa = [];
 
 	if (!value || value === '0') {
 	    return gettext('Disabled');
@@ -632,9 +632,9 @@ Ext.define('PVE.Utils', {
     },
 
     render_kvm_startup: function(value) {
-	var startup = PVE.Parser.parseStartup(value);
+	let startup = PVE.Parser.parseStartup(value);
 
-	var res = 'order=';
+	let res = 'order=';
 	if (startup.order === undefined) {
 	    res += 'any';
 	} else {
@@ -651,18 +651,19 @@ Ext.define('PVE.Utils', {
     },
 
     extractFormActionError: function(action) {
-	var msg;
+	let msg;
 	switch (action.failureType) {
 	case Ext.form.action.Action.CLIENT_INVALID:
 	    msg = gettext('Form fields may not be submitted with invalid values');
 	    break;
-	case Ext.form.action.Action.CONNECT_FAILURE:
+	case Ext.form.action.Action.CONNECT_FAILURE: {
 	    msg = gettext('Connection error');
-	    var resp = action.response;
+	    let resp = action.response;
 	    if (resp.status && resp.statusText) {
 		msg += " " + resp.status + ": " + resp.statusText;
 	    }
 	    break;
+	}
 	case Ext.form.action.Action.LOAD_FAILURE:
 	case Ext.form.action.Action.SERVER_INVALID:
 	    msg = Proxmox.Utils.extractRequestError(action.result, true);
@@ -921,7 +922,7 @@ Ext.define('PVE.Utils', {
     },
 
     format_sdnvnet_type: function(value, md, record) {
-	var schema = PVE.Utils.sdnvnetSchema[value];
+	let schema = PVE.Utils.sdnvnetSchema[value];
 	if (schema) {
 	    return schema.name;
 	}
@@ -929,7 +930,7 @@ Ext.define('PVE.Utils', {
     },
 
     format_sdnzone_type: function(value, md, record) {
-	var schema = PVE.Utils.sdnzoneSchema[value];
+	let schema = PVE.Utils.sdnzoneSchema[value];
 	if (schema) {
 	    return schema.name;
 	}
@@ -937,7 +938,7 @@ Ext.define('PVE.Utils', {
     },
 
     format_sdncontroller_type: function(value, md, record) {
-	var schema = PVE.Utils.sdncontrollerSchema[value];
+	let schema = PVE.Utils.sdncontrollerSchema[value];
 	if (schema) {
 	    return schema.name;
 	}
@@ -945,7 +946,7 @@ Ext.define('PVE.Utils', {
     },
 
     format_sdnipam_type: function(value, md, record) {
-	var schema = PVE.Utils.sdnipamSchema[value];
+	let schema = PVE.Utils.sdnipamSchema[value];
 	if (schema) {
 	    return schema.name;
 	}
@@ -953,7 +954,7 @@ Ext.define('PVE.Utils', {
     },
 
     format_sdndns_type: function(value, md, record) {
-	var schema = PVE.Utils.sdndnsSchema[value];
+	let schema = PVE.Utils.sdndnsSchema[value];
 	if (schema) {
 	    return schema.name;
 	}
@@ -972,7 +973,7 @@ Ext.define('PVE.Utils', {
     },
 
     format_ha: function(value) {
-	var text = Proxmox.Utils.noneText;
+	let text = Proxmox.Utils.noneText;
 
 	if (value.managed) {
 	    text = value.state || Proxmox.Utils.noneText;
@@ -991,7 +992,7 @@ Ext.define('PVE.Utils', {
     },
 
     render_storage_content: function(value, metaData, record) {
-	var data = record.data;
+	let data = record.data;
 	if (Ext.isNumber(data.channel) &&
 	    Ext.isNumber(data.id) &&
 	    Ext.isNumber(data.lun)) {
@@ -1015,12 +1016,12 @@ Ext.define('PVE.Utils', {
 	    return -1;
 	}
 
-	var index = PVE.data.ResourceStore.findExact('id', 'node/' + data.node);
-	var node = PVE.data.ResourceStore.getAt(index);
+	let index = PVE.data.ResourceStore.findExact('id', 'node/' + data.node);
+	let node = PVE.data.ResourceStore.getAt(index);
 	if (!Ext.isDefined(node) || node === null) {
 	    return -1;
 	}
-	var maxcpu = node.data.maxcpu || 1;
+	let maxcpu = node.data.maxcpu || 1;
 
 	if (!Ext.isNumeric(maxcpu) && (maxcpu >= 1)) {
 	    return -1;
@@ -1038,18 +1039,18 @@ Ext.define('PVE.Utils', {
 	    return '';
 	}
 
-	var index = PVE.data.ResourceStore.findExact('id', 'node/' + record.data.node);
-	var node = PVE.data.ResourceStore.getAt(index);
+	let index = PVE.data.ResourceStore.findExact('id', 'node/' + record.data.node);
+	let node = PVE.data.ResourceStore.getAt(index);
 	if (!Ext.isDefined(node) || node === null) {
 	    return '';
 	}
-	var maxcpu = node.data.maxcpu || 1;
+	let maxcpu = node.data.maxcpu || 1;
 
 	if (!Ext.isNumeric(maxcpu) && (maxcpu >= 1)) {
 	    return '';
 	}
 
-	var per = (record.data.cpu/maxcpu) * record.data.maxcpu * 100;
+	let per = (record.data.cpu/maxcpu) * record.data.maxcpu * 100;
 
 	return per.toFixed(1) + '% of ' + maxcpu.toString() + (maxcpu > 1 ? 'CPUs' : 'CPU');
     },
@@ -1093,13 +1094,13 @@ Ext.define('PVE.Utils', {
 	    return -1;
 	}
 
-        var index = PVE.data.ResourceStore.findExact('id', 'node/' + data.node);
-	var node = PVE.data.ResourceStore.getAt(index);
+	let index = PVE.data.ResourceStore.findExact('id', 'node/' + data.node);
+	let node = PVE.data.ResourceStore.getAt(index);
 
         if (!Ext.isDefined(node) || node === null) {
 	    return -1;
         }
-	var maxmem = node.data.maxmem || 0;
+	let maxmem = node.data.maxmem || 0;
 
 	if (!Ext.isNumeric(data.mem) ||
 	    maxmem === 0 ||
@@ -1116,8 +1117,8 @@ Ext.define('PVE.Utils', {
 	}
 	if (value > 1) {
 	    // we got no percentage but bytes
-	    var mem = value;
-	    var maxmem = record.data.maxmem;
+	    let mem = value;
+	    let maxmem = record.data.maxmem;
 	    if (!record.data.uptime ||
 		maxmem === 0 ||
 		!Ext.isNumeric(mem)) {
@@ -1138,13 +1139,13 @@ Ext.define('PVE.Utils', {
 	    return '';
 	}
 
-	var index = PVE.data.ResourceStore.findExact('id', 'node/' + record.data.node);
-	var node = PVE.data.ResourceStore.getAt(index);
-	var maxmem = node.data.maxmem || 0;
+	let index = PVE.data.ResourceStore.findExact('id', 'node/' + record.data.node);
+	let node = PVE.data.ResourceStore.getAt(index);
+	let maxmem = node.data.maxmem || 0;
 
 	if (record.data.mem > 1) {
 	    // we got no percentage but bytes
-	    var mem = record.data.mem;
+	    let mem = record.data.mem;
 	    if (!record.data.uptime ||
 		maxmem === 0 ||
 		!Ext.isNumeric(mem)) {
@@ -1157,8 +1158,8 @@ Ext.define('PVE.Utils', {
     },
 
     render_mem_usage: function(value, metaData, record, rowIndex, colIndex, store) {
-	var mem = value;
-	var maxmem = record.data.maxmem;
+	let mem = value;
+	let maxmem = record.data.maxmem;
 
 	if (!record.data.uptime) {
 	    return '';
@@ -1191,9 +1192,9 @@ Ext.define('PVE.Utils', {
     },
 
     render_disk_usage: function(value, metaData, record, rowIndex, colIndex, store) {
-	var disk = value;
-	var maxdisk = record.data.maxdisk;
-	var type = record.data.type;
+	let disk = value;
+	let maxdisk = record.data.maxdisk;
+	let type = record.data.type;
 
 	if (!Ext.isNumeric(disk) ||
 	    maxdisk === 0 ||
@@ -1206,8 +1207,8 @@ Ext.define('PVE.Utils', {
     },
 
     get_object_icon_class: function(type, record) {
-	var status = '';
-	var objType = type;
+	let status = '';
+	let objType = type;
 
 	if (type === 'type') {
 	    // for folder view
@@ -1225,9 +1226,9 @@ Ext.define('PVE.Utils', {
 	    status += ' locked lock-' + record.lock;
 	}
 
-	var defaults = PVE.tree.ResourceTree.typeDefaults[objType];
+	let defaults = PVE.tree.ResourceTree.typeDefaults[objType];
 	if (defaults && defaults.iconCls) {
-	    var retVal = defaults.iconCls + ' ' + status;
+	    let retVal = defaults.iconCls + ' ' + status;
 	    return retVal;
 	}
 
@@ -1235,9 +1236,9 @@ Ext.define('PVE.Utils', {
     },
 
     render_resource_type: function(value, metaData, record, rowIndex, colIndex, store) {
-	var cls = PVE.Utils.get_object_icon_class(value, record.data);
+	let cls = PVE.Utils.get_object_icon_class(value, record.data);
 
-	var fa = '<i class="fa-fw x-grid-icon-custom ' + cls + '"></i> ';
+	let fa = '<i class="fa-fw x-grid-icon-custom ' + cls + '"></i> ';
 	return fa + value;
     },
 
@@ -1246,8 +1247,8 @@ Ext.define('PVE.Utils', {
     },
 
     render_upid: function(value, metaData, record) {
-	var type = record.data.type;
-	var id = record.data.id;
+	let type = record.data.type;
+	let id = record.data.id;
 
 	return Proxmox.Utils.format_task_description(type, id);
     },
@@ -1260,7 +1261,7 @@ Ext.define('PVE.Utils', {
     },
 
     render_san: function(value) {
-	var names = [];
+	let names = [];
 	if (Ext.isArray(value)) {
 	    value.forEach(function(val) {
 		if (!Ext.isNumber(val)) {
@@ -1273,8 +1274,8 @@ Ext.define('PVE.Utils', {
     },
 
     render_full_name: function(firstname, metaData, record) {
-	var first = firstname || '';
-	var last = record.data.lastname || '';
+	let first = firstname || '';
+	let last = record.data.lastname || '';
 	return Ext.htmlEncode(first + " " + last);
     },
 
@@ -1284,7 +1285,7 @@ Ext.define('PVE.Utils', {
     },
 
     openDefaultConsoleWindow: function(consoles, consoleType, vmid, nodename, vmname, cmd) {
-	var dv = PVE.Utils.defaultViewer(consoles, consoleType);
+	let dv = PVE.Utils.defaultViewer(consoles, consoleType);
 	PVE.Utils.openConsoleWindow(dv, consoleType, vmid, nodename, vmname, cmd);
     },
 
@@ -1323,7 +1324,7 @@ Ext.define('PVE.Utils', {
     },
 
     defaultViewer: function(consoles, type) {
-	var allowSpice, allowXtermjs;
+	let allowSpice, allowXtermjs;
 
 	if (consoles === true) {
 	    allowSpice = true;
@@ -1345,10 +1346,10 @@ Ext.define('PVE.Utils', {
     openVNCViewer: function(vmtype, vmid, nodename, vmname, cmd) {
 	let scaling = 'off';
 	if (Proxmox.Utils.toolkit !== 'touch') {
-	    var sp = Ext.state.Manager.getProvider();
+	    let sp = Ext.state.Manager.getProvider();
 	    scaling = sp.get('novnc-scaling', 'off');
 	}
-	var url = Ext.Object.toQueryString({
+	let url = Ext.Object.toQueryString({
 	    console: vmtype, // kvm, lxc, upgrade or shell
 	    novnc: 1,
 	    vmid: vmid,
@@ -1357,15 +1358,15 @@ Ext.define('PVE.Utils', {
 	    resize: scaling,
 	    cmd: cmd,
 	});
-	var nw = window.open("?" + url, '_blank', "innerWidth=745,innerheight=427");
+	let nw = window.open("?" + url, '_blank', "innerWidth=745,innerheight=427");
 	if (nw) {
 	    nw.focus();
 	}
     },
 
     openSpiceViewer: function(url, params) {
-	var downloadWithName = function(uri, name) {
-	    var link = Ext.DomHelper.append(document.body, {
+	let downloadWithName = function(uri, name) {
+	    let link = Ext.DomHelper.append(document.body, {
 		tag: 'a',
 		href: uri,
 		css: 'display:none;visibility:hidden;height:0px;',
@@ -1626,8 +1627,8 @@ Ext.define('PVE.Utils', {
 	    if (Proxmox.UserName === 'root at pam') {
 		container.el.mask();
 		if (!container.down('pveCephInstallWindow')) {
-		    var isInstalled = !!msg.match(/not initialized/i);
-		    var win = Ext.create('PVE.ceph.Install', {
+		    let isInstalled = !!msg.match(/not initialized/i);
+		    let win = Ext.create('PVE.ceph.Install', {
 			nodename: nodename,
 		    });
 		    win.getViewModel().set('isInstalled', isInstalled);
@@ -1807,7 +1808,7 @@ Ext.define('PVE.Utils', {
 
     singleton: true,
     constructor: function() {
-	var me = this;
+	let me = this;
 	Ext.apply(me, me.utilities);
 
 	Proxmox.Utils.override_task_descriptions({
diff --git a/www/manager6/VNCConsole.js b/www/manager6/VNCConsole.js
index 9057e447..1f4c0e96 100644
--- a/www/manager6/VNCConsole.js
+++ b/www/manager6/VNCConsole.js
@@ -13,7 +13,7 @@ Ext.define('PVE.noVncConsole', {
     border: false,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
@@ -29,9 +29,9 @@ Ext.define('PVE.noVncConsole', {
 
 	// always use same iframe, to avoid running several noVnc clients
 	// at same time (to avoid performance problems)
-	var box = Ext.create('Ext.ux.IFrame', { itemid: "vncconsole" });
+	let box = Ext.create('Ext.ux.IFrame', { itemid: "vncconsole" });
 
-	var type = me.xtermjs ? 'xtermjs' : 'novnc';
+	let type = me.xtermjs ? 'xtermjs' : 'novnc';
 	Ext.apply(me, {
 	    items: box,
 	    listeners: {
@@ -50,7 +50,7 @@ Ext.define('PVE.noVncConsole', {
 		    };
 		    queryDict[type] = 1;
 		    PVE.Utils.cleanEmptyObjectKeys(queryDict);
-		    var url = '/?' + Ext.Object.toQueryString(queryDict);
+		    let url = '/?' + Ext.Object.toQueryString(queryDict);
 		    box.load(url);
 		},
 	    },
@@ -65,7 +65,7 @@ Ext.define('PVE.noVncConsole', {
 
     reload: function() {
 	// reload IFrame content to forcibly reconnect VNC/xterm.js to VM
-	var box = this.down('[itemid=vncconsole]');
+	let box = this.down('[itemid=vncconsole]');
 	box.getWin().location.reload();
     },
 });
diff --git a/www/manager6/Workspace.js b/www/manager6/Workspace.js
index 37d772b8..9831571a 100644
--- a/www/manager6/Workspace.js
+++ b/www/manager6/Workspace.js
@@ -366,7 +366,7 @@ Ext.define('PVE.StdWorkspace', {
 				    iconCls: 'fa fa-gear',
 				    text: gettext('My Settings'),
 				    handler: function() {
-					var win = Ext.create('PVE.window.Settings');
+					let win = Ext.create('PVE.window.Settings');
 					win.show();
 				    },
 				},
@@ -375,7 +375,7 @@ Ext.define('PVE.StdWorkspace', {
 				    itemId: 'passworditem',
 				    iconCls: 'fa fa-fw fa-key',
 				    handler: function() {
-					var win = Ext.create('Proxmox.window.PasswordEdit', {
+					let win = Ext.create('Proxmox.window.PasswordEdit', {
 					    userid: Proxmox.UserName,
 					});
 					win.show();
@@ -406,12 +406,12 @@ Ext.define('PVE.StdWorkspace', {
 					PVE.data.ResourceStore.loadData([], false);
 					me.showLogin();
 					me.setContent(null);
-					var rt = me.down('pveResourceTree');
+					let rt = me.down('pveResourceTree');
 					rt.setDatacenterText(undefined);
 					rt.clearTree();
 
 					// empty the stores of the StatusPanel child items
-					var statusPanels = Ext.ComponentQuery.query('pveStatusPanel grid');
+					let statusPanels = Ext.ComponentQuery.query('pveStatusPanel grid');
 					Ext.Array.forEach(statusPanels, function(comp) {
 					    if (comp.getStore()) {
 						comp.getStore().loadData([], false);
@@ -450,7 +450,7 @@ Ext.define('PVE.StdWorkspace', {
 		    items: [selview, rtree],
 		    listeners: {
 			resize: function(panel, width, height) {
-			    var viewWidth = me.getSize().width;
+			    let viewWidth = me.getSize().width;
 			    if (width > viewWidth - 100) {
 				panel.setWidth(viewWidth - 100);
 			    }
@@ -471,7 +471,7 @@ Ext.define('PVE.StdWorkspace', {
 		    split: true,
 		    listeners: {
 			resize: function(panel, width, height) {
-			    var viewHeight = me.getSize().height;
+			    let viewHeight = me.getSize().height;
 			    if (height > viewHeight - 150) {
 				panel.setHeight(viewHeight - 150);
 			    }
diff --git a/www/manager6/button/ConsoleButton.js b/www/manager6/button/ConsoleButton.js
index 62928e47..edae7425 100644
--- a/www/manager6/button/ConsoleButton.js
+++ b/www/manager6/button/ConsoleButton.js
@@ -20,14 +20,14 @@ Ext.define('PVE.button.ConsoleButton', {
     text: gettext('Console'),
 
     setEnableSpice: function(enable) {
-	var me = this;
+	let me = this;
 
 	me.enableSpice = enable;
 	me.down('#spicemenu').setDisabled(!enable);
     },
 
     setEnableXtermJS: function(enable) {
-	var me = this;
+	let me = this;
 
 	me.enableXtermjs = enable;
 	me.down('#xtermjs').setDisabled(!enable);
diff --git a/www/manager6/button/Split.js b/www/manager6/button/Split.js
index 090571de..c558ba21 100644
--- a/www/manager6/button/Split.js
+++ b/www/manager6/button/Split.js
@@ -23,8 +23,8 @@ Ext.define('PVE.button.Split', {
     dangerous: false,
 
     handlerWrapper: function(button, event) {
-	var me = this;
-	var rec, msg;
+	let me = this;
+	let rec, msg;
 	if (me.selModel) {
 	    rec = me.selModel.getSelection()[0];
 	    if (!rec || me.enableFn(rec) === false) {
@@ -57,7 +57,7 @@ Ext.define('PVE.button.Split', {
     },
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	if (me.handler) {
 	    me.realHandler = me.handler;
@@ -73,7 +73,7 @@ Ext.define('PVE.button.Split', {
 
 		if (item.selModel) {
 		    me.mon(item.selModel, "selectionchange", function() {
-			var rec = item.selModel.getSelection()[0];
+			let rec = item.selModel.getSelection()[0];
 			if (!rec || item.enableFn(rec) === false) {
 			    item.setDisabled(true);
 			} else {
@@ -88,7 +88,7 @@ Ext.define('PVE.button.Split', {
 
 	if (me.selModel) {
 	    me.mon(me.selModel, "selectionchange", function() {
-		var rec = me.selModel.getSelection()[0];
+		let rec = me.selModel.getSelection()[0];
 		if (!rec || me.enableFn(rec) === false) {
 		    me.setDisabled(true);
 		} else {
diff --git a/www/manager6/ceph/CephInstallWizard.js b/www/manager6/ceph/CephInstallWizard.js
index 79b0f4e4..145b6537 100644
--- a/www/manager6/ceph/CephInstallWizard.js
+++ b/www/manager6/ceph/CephInstallWizard.js
@@ -154,25 +154,25 @@ Ext.define('PVE.ceph.CephInstallWizard', {
 
     title: gettext('Setup'),
     navigateNext: function() {
-	var tp = this.down('#wizcontent');
-	var atab = tp.getActiveTab();
+	let tp = this.down('#wizcontent');
+	let atab = tp.getActiveTab();
 
-	var next = tp.items.indexOf(atab) + 1;
-	var ntab = tp.items.getAt(next);
+	let next = tp.items.indexOf(atab) + 1;
+	let ntab = tp.items.getAt(next);
 	if (ntab) {
 	    ntab.enable();
 	    tp.setActiveTab(ntab);
 	}
     },
     setInitialTab: function(index) {
-	var tp = this.down('#wizcontent');
-	var initialTab = tp.items.getAt(index);
+	let tp = this.down('#wizcontent');
+	let initialTab = tp.items.getAt(index);
 	initialTab.enable();
 	tp.setActiveTab(initialTab);
     },
     onShow: function() {
 	    this.callParent(arguments);
-	    var isInstalled = this.getViewModel().get('isInstalled');
+	    let isInstalled = this.getViewModel().get('isInstalled');
 	    if (isInstalled) {
 		this.getViewModel().set('configuration', false);
 		this.setInitialTab(2);
@@ -263,7 +263,7 @@ Ext.define('PVE.ceph.CephInstallWizard', {
 	    viewModel: {}, // needed to inherit parent viewModel data
 	    listeners: {
 		afterrender: function() {
-		    var me = this;
+		    let me = this;
 		    if (this.getViewModel().get('isInstalled')) {
 			this.mask("Ceph is already installed, click next to create your configuration.", ['pve-static-mask']);
 		    } else {
@@ -302,7 +302,7 @@ Ext.define('PVE.ceph.CephInstallWizard', {
 		    me.updateStore.startUpdate();
 		},
 		destroy: function() {
-		    var me = this;
+		    let me = this;
 		    if (me.updateStore) {
 			me.updateStore.stopUpdate();
 		    }
@@ -456,14 +456,14 @@ Ext.define('PVE.ceph.CephInstallWizard', {
 		return values;
 	    },
 	    onSubmit: function() {
-		var me = this;
+		let me = this;
 		if (!this.up('pveCephInstallWizard').getViewModel().get('configuration')) {
-		    var wizard = me.up('window');
-		    var kv = wizard.getValues();
+		    let wizard = me.up('window');
+		    let kv = wizard.getValues();
 		    delete kv.delete;
-		    var monNode = kv['mon-node'];
+		    let monNode = kv['mon-node'];
 		    delete kv['mon-node'];
-		    var nodename = me.nodename;
+		    let nodename = me.nodename;
 		    delete kv.nodename;
 		    Proxmox.Utils.API2Request({
 			url: `/nodes/${nodename}/ceph/init`,
@@ -512,10 +512,10 @@ Ext.define('PVE.ceph.CephInstallWizard', {
 			Ext.GlobalEvents.fireEvent('proxmoxShowHelp', this.onlineHelp);
 		    }
 
-		    var tp = this.up('#wizcontent');
-		    var idx = tp.items.indexOf(this)-1;
+		    let tp = this.up('#wizcontent');
+		    let idx = tp.items.indexOf(this)-1;
 		    for (;idx >= 0; idx--) {
-			var nc = tp.items.getAt(idx);
+			let nc = tp.items.getAt(idx);
 			if (nc) {
 			    nc.disable();
 			}
@@ -528,7 +528,7 @@ Ext.define('PVE.ceph.CephInstallWizard', {
 		},
 	    },
 	    onSubmit: function() {
-		var wizard = this.up('pveCephInstallWizard');
+		let wizard = this.up('pveCephInstallWizard');
 		wizard.close();
 	    },
 	},
diff --git a/www/manager6/ceph/Config.js b/www/manager6/ceph/Config.js
index 7f07f15f..ec22f99b 100644
--- a/www/manager6/ceph/Config.js
+++ b/www/manager6/ceph/Config.js
@@ -46,9 +46,9 @@ Ext.define('PVE.node.CephConfigDb', {
     ],
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
@@ -70,14 +70,14 @@ Ext.define('PVE.node.CephConfig', {
     border: false,
     scrollable: true,
     load: function() {
-	var me = this;
+	let me = this;
 
 	Proxmox.Utils.API2Request({
 	    url: me.url,
 	    waitMsgTarget: me,
 	    failure: function(response, opts) {
 		me.update(gettext('Error') + " " + response.htmlStatus);
-		var msg = response.htmlStatus;
+		let msg = response.htmlStatus;
 		PVE.Utils.showCephInstallOrMask(me.ownerCt, msg, me.pveSelNode.data.node,
 		    function(win) {
 			me.mon(win, 'cephInstallWindowClosed', function() {
@@ -87,16 +87,16 @@ Ext.define('PVE.node.CephConfig', {
 		);
 	    },
 	    success: function(response, opts) {
-		var data = response.result.data;
+		let data = response.result.data;
 		me.update(Ext.htmlEncode(data));
 	    },
 	});
     },
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
@@ -145,7 +145,7 @@ Ext.define('PVE.node.CephConfigCrush', {
     }],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 	me.defaults = {
 	    pveSelNode: me.pveSelNode,
 	};
diff --git a/www/manager6/ceph/Crush.js b/www/manager6/ceph/Crush.js
index c0bdfa27..8269d148 100644
--- a/www/manager6/ceph/Crush.js
+++ b/www/manager6/ceph/Crush.js
@@ -8,14 +8,14 @@ Ext.define('PVE.node.CephCrushMap', {
     stateId: 'layout-ceph-crush',
     scrollable: true,
     load: function() {
-	var me = this;
+	let me = this;
 
 	Proxmox.Utils.API2Request({
 	    url: me.url,
 	    waitMsgTarget: me,
 	    failure: function(response, opts) {
 		me.update(gettext('Error') + " " + response.htmlStatus);
-		var msg = response.htmlStatus;
+		let msg = response.htmlStatus;
 		PVE.Utils.showCephInstallOrMask(
 		    me.ownerCt,
 		    msg,
@@ -24,7 +24,7 @@ Ext.define('PVE.node.CephCrushMap', {
 		);
 	    },
 	    success: function(response, opts) {
-		var data = response.result.data;
+		let data = response.result.data;
 		me.update(Ext.htmlEncode(data));
 	    },
 	});
diff --git a/www/manager6/ceph/FS.js b/www/manager6/ceph/FS.js
index e9815355..0c79899e 100644
--- a/www/manager6/ceph/FS.js
+++ b/www/manager6/ceph/FS.js
@@ -10,7 +10,7 @@ Ext.define('PVE.CephCreateFS', {
     method: 'POST',
 
     setFSName: function(fsName) {
-	var me = this;
+	let me = this;
 
 	if (fsName === '' || fsName === undefined) {
 	    fsName = 'cephfs';
@@ -56,7 +56,7 @@ Ext.define('PVE.CephCreateFS', {
     ],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
@@ -176,7 +176,7 @@ Ext.define('PVE.NodeCephFSPanel', {
 	    stateId: 'grid-ceph-mds',
 	    type: 'mds',
 	    storeLoadCallback: function(store, records, success) {
-		var vm = this.getViewModel();
+		let vm = this.getViewModel();
 		if (!success || !records) {
 		    vm.set('mdsCount', 0);
 		    return;
diff --git a/www/manager6/ceph/Log.js b/www/manager6/ceph/Log.js
index 4fda3209..6b9c1c93 100644
--- a/www/manager6/ceph/Log.js
+++ b/www/manager6/ceph/Log.js
@@ -5,9 +5,9 @@ Ext.define('PVE.ceph.Log', {
     nodename: undefined,
 
     failCallback: function(response) {
-	var me = this;
-	var msg = response.htmlStatus;
-	var windowShow = PVE.Utils.showCephInstallOrMask(me, msg, me.nodename,
+	let me = this;
+	let msg = response.htmlStatus;
+	let windowShow = PVE.Utils.showCephInstallOrMask(me, msg, me.nodename,
 	    function(win) {
 		me.mon(win, 'cephInstallWindowClosed', function() {
 		    me.loadTask.delay(200);
diff --git a/www/manager6/ceph/Pool.js b/www/manager6/ceph/Pool.js
index a1f008d1..feeddf55 100644
--- a/www/manager6/ceph/Pool.js
+++ b/www/manager6/ceph/Pool.js
@@ -341,16 +341,16 @@ Ext.define('PVE.node.Ceph.PoolList', {
 	},
     ],
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var rstore = Ext.create('Proxmox.data.UpdateStore', {
+	let rstore = Ext.create('Proxmox.data.UpdateStore', {
 	    interval: 3000,
 	    storeid: 'ceph-pool-list' + nodename,
 	    model: 'ceph-pool-list',
@@ -364,7 +364,7 @@ Ext.define('PVE.node.Ceph.PoolList', {
 	// manages the "install ceph?" overlay
 	PVE.Utils.monitor_ceph_installed(me, rstore, nodename);
 
-	var run_editor = function() {
+	let run_editor = function() {
 	    let rec = sm.getSelection()[0];
 	    if (!rec || !rec.data.pool_name) {
 		return;
diff --git a/www/manager6/ceph/Services.js b/www/manager6/ceph/Services.js
index b9fc52c8..e6a1d793 100644
--- a/www/manager6/ceph/Services.js
+++ b/www/manager6/ceph/Services.js
@@ -37,7 +37,7 @@ Ext.define('PVE.ceph.Services', {
     ],
 
     updateAll: function(metadata, status) {
-	var me = this;
+	let me = this;
 
 	const healthstates = {
 	    'HEALTH_UNKNOWN': 0,
@@ -55,7 +55,7 @@ Ext.define('PVE.ceph.Services', {
 		maxversion = node?.version?.parts;
 	    }
 	});
-	var quorummap = status && status.quorum_names ? status.quorum_names : [];
+	let quorummap = status && status.quorum_names ? status.quorum_names : [];
 	let monmessages = {}, mgrmessages = {}, mdsmessages = {};
 	if (status) {
 	    if (status.health) {
@@ -141,7 +141,7 @@ Ext.define('PVE.ceph.Services', {
 	};
 
 	for (let type of ['mon', 'mgr', 'mds']) {
-	    var ids = Object.keys(metadata[type] || {});
+	    let ids = Object.keys(metadata[type] || {});
 	    me[type] = {};
 
 	    for (let id of ids) {
@@ -245,7 +245,7 @@ Ext.define('PVE.ceph.ServiceList', {
     ],
 
     updateAll: function(list) {
-	var me = this;
+	let me = this;
 	me.suspendLayout = true;
 
 	list.sort((a, b) => a.id > b.id ? 1 : a.id < b.id ? -1 : 0);
@@ -276,7 +276,7 @@ Ext.define('PVE.ceph.ServiceList', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 	me.callParent();
 	me.getComponent('title').update({
 	    title: me.title,
@@ -302,7 +302,7 @@ Ext.define('PVE.ceph.ServiceWidget', {
     ],
 
     updateService: function(title, text, health) {
-	var me = this;
+	let me = this;
 
 	me.update(Ext.apply(me.data, {
 	    health: health,
diff --git a/www/manager6/ceph/Status.js b/www/manager6/ceph/Status.js
index bdcf3f1b..2691e8a0 100644
--- a/www/manager6/ceph/Status.js
+++ b/www/manager6/ceph/Status.js
@@ -109,7 +109,7 @@ Ext.define('PVE.node.CephStatus', {
 				{
 				    iconCls: 'x-fa fa-info-circle',
 				    handler: function(grid, rowindex, colindex, item, e, record) {
-					var win = Ext.create('Ext.window.Window', {
+					let win = Ext.create('Ext.window.Window', {
 					    title: gettext('Detail'),
 					    resizable: true,
 					    modal: true,
@@ -256,7 +256,7 @@ Ext.define('PVE.node.CephStatus', {
     ],
 
     generateCheckData: function(health) {
-	var result = [];
+	let result = [];
 	let checks = health.checks || {};
 
 	Object.keys(checks).sort().forEach(key => {
@@ -276,8 +276,8 @@ Ext.define('PVE.node.CephStatus', {
 	    return;
 	}
 
-	var me = this;
-	var rec = records[0];
+	let me = this;
+	let rec = records[0];
 	me.status = rec.data;
 
 	// add health panel
@@ -296,7 +296,7 @@ Ext.define('PVE.node.CephStatus', {
 	let used = pgmap.bytes_used;
 	let total = pgmap.bytes_total;
 
-	var text = Ext.String.format(gettext('{0} of {1}'),
+	let text = Ext.String.format(gettext('{0} of {1}'),
 	    Proxmox.Utils.render_size(used),
 	    Proxmox.Utils.render_size(total),
 	);
@@ -348,12 +348,12 @@ Ext.define('PVE.node.CephStatus', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 
 	me.callParent();
-	var baseurl = '/api2/json' + (nodename ? '/nodes/' + nodename : '/cluster') + '/ceph';
+	let baseurl = '/api2/json' + (nodename ? '/nodes/' + nodename : '/cluster') + '/ceph';
 	me.store = Ext.create('Proxmox.data.UpdateStore', {
 	    storeid: 'ceph-status-' + (nodename || 'cluster'),
 	    interval: 5000,
diff --git a/www/manager6/ceph/StatusDetail.js b/www/manager6/ceph/StatusDetail.js
index 88b1775c..f4db8829 100644
--- a/www/manager6/ceph/StatusDetail.js
+++ b/www/manager6/ceph/StatusDetail.js
@@ -106,7 +106,7 @@ Ext.define('PVE.ceph.StatusDetail', {
 		tooltip: {
 		    trackMouse: true,
 		    renderer: function(tooltip, record, ctx) {
-			var html = record.get('text');
+			let html = record.get('text');
 			html += '<br>';
 			record.get('states').forEach(function(state) {
 			    html += '<br>' +
@@ -265,7 +265,7 @@ Ext.define('PVE.ceph.StatusDetail', {
 	const downinregex = /(\d+) osds down/;
 	let downin_osds = 0;
 	Ext.Object.each(health.checks, function(key, value, obj) {
-	    var found = null;
+	    let found = null;
 	    if (key === 'OSD_DOWN') {
 		found = value.summary.message.match(downinregex);
 		if (found !== null) {
diff --git a/www/manager6/controller/StorageEdit.js b/www/manager6/controller/StorageEdit.js
index cb73b776..ea4a8ff1 100644
--- a/www/manager6/controller/StorageEdit.js
+++ b/www/manager6/controller/StorageEdit.js
@@ -10,8 +10,8 @@ Ext.define('PVE.controller.StorageEdit', {
 		    prealloc.setDisabled(!hasImages);
 		}
 
-		var hasBackups = Ext.Array.contains(value, 'backup');
-		var maxfiles = this.lookupReference('maxfiles');
+		let hasBackups = Ext.Array.contains(value, 'backup');
+		let maxfiles = this.lookupReference('maxfiles');
 		if (!maxfiles) {
 		    return;
 		}
diff --git a/www/manager6/data/PermPathStore.js b/www/manager6/data/PermPathStore.js
index cf702c03..3668a2a0 100644
--- a/www/manager6/data/PermPathStore.js
+++ b/www/manager6/data/PermPathStore.js
@@ -16,7 +16,7 @@ Ext.define('PVE.data.PermPathStore', {
     ],
 
     constructor: function(config) {
-	var me = this;
+	let me = this;
 
 	config = config || {};
 
diff --git a/www/manager6/data/ResourceStore.js b/www/manager6/data/ResourceStore.js
index c7b72306..ed601f48 100644
--- a/www/manager6/data/ResourceStore.js
+++ b/www/manager6/data/ResourceStore.js
@@ -80,7 +80,7 @@ Ext.define('PVE.data.ResourceStore', {
 		renderer: Proxmox.Utils.format_boolean,
 		hidden: true,
 		convert: function(value, record) {
-		    var info = record.data;
+		    let info = record.data;
 		    return Ext.isNumeric(info.uptime) && info.uptime > 0;
 		},
 	    },
@@ -298,7 +298,7 @@ Ext.define('PVE.data.ResourceStore', {
 	let fields = [];
 	let fieldNames = [];
 	Ext.Object.each(field_defaults, function(key, value) {
-	    var field = { name: key, type: value.type };
+	    let field = { name: key, type: value.type };
 	    if (Ext.isDefined(value.convert)) {
 		field.convert = value.convert;
 	    }
diff --git a/www/manager6/dc/ACLView.js b/www/manager6/dc/ACLView.js
index 79f900cd..522f5082 100644
--- a/www/manager6/dc/ACLView.js
+++ b/www/manager6/dc/ACLView.js
@@ -158,7 +158,7 @@ Ext.define('PVE.dc.ACLView', {
 	    selModel: sm,
 	    confirmMsg: gettext('Are you sure you want to remove this entry'),
 	    handler: function(btn, event, rec) {
-		var params = {
+		let params = {
 		    'delete': 1,
 		    path: rec.data.path,
 		    roles: rec.data.roleid,
@@ -199,7 +199,7 @@ Ext.define('PVE.dc.ACLView', {
 				text: gettext('Group Permission'),
 				iconCls: 'fa fa-fw fa-group',
 				handler: function() {
-				    var win = Ext.create('PVE.dc.ACLAdd', {
+				    let win = Ext.create('PVE.dc.ACLAdd', {
 					aclType: 'group',
 					path: me.path,
 				    });
@@ -211,7 +211,7 @@ Ext.define('PVE.dc.ACLView', {
 				text: gettext('User Permission'),
 				iconCls: 'fa fa-fw fa-user',
 				handler: function() {
-				    var win = Ext.create('PVE.dc.ACLAdd', {
+				    let win = Ext.create('PVE.dc.ACLAdd', {
 					aclType: 'user',
 					path: me.path,
 				    });
diff --git a/www/manager6/dc/ACMEPluginEdit.js b/www/manager6/dc/ACMEPluginEdit.js
index 570b4dd2..f81ced55 100644
--- a/www/manager6/dc/ACMEPluginEdit.js
+++ b/www/manager6/dc/ACMEPluginEdit.js
@@ -206,7 +206,7 @@ Ext.define('PVE.dc.ACMEPluginEditor', {
     ],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
 
diff --git a/www/manager6/dc/AuthEditBase.js b/www/manager6/dc/AuthEditBase.js
index e18fbc3b..f41d5a75 100644
--- a/www/manager6/dc/AuthEditBase.js
+++ b/www/manager6/dc/AuthEditBase.js
@@ -77,7 +77,7 @@ Ext.define('PVE.dc.AuthEditBase', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = !me.realm;
 
@@ -143,7 +143,7 @@ Ext.define('PVE.dc.AuthEditBase', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var data = response.result.data || {};
+		    let data = response.result.data || {};
 		    // just to be sure (should not happen)
 		    if (data.type !== me.authType) {
 			me.close();
diff --git a/www/manager6/dc/AuthView.js b/www/manager6/dc/AuthView.js
index 60332c3f..f355cd9e 100644
--- a/www/manager6/dc/AuthView.js
+++ b/www/manager6/dc/AuthView.js
@@ -88,7 +88,7 @@ Ext.define('PVE.dc.AuthView', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	let items = [];
 	for (const [authType, config] of Object.entries(PVE.Utils.authSchema)) {
diff --git a/www/manager6/dc/Backup.js b/www/manager6/dc/Backup.js
index e9d74fb6..70157baa 100644
--- a/www/manager6/dc/Backup.js
+++ b/www/manager6/dc/Backup.js
@@ -287,7 +287,7 @@ Ext.define('PVE.dc.BackupEdit', {
 		sm.deselectAll(true);
 		if (list) {
 		    Ext.Array.each(list.split(','), function(vmid) {
-			var rec = store.findRecord('vmid', vmid, 0, false, true, true);
+			let rec = store.findRecord('vmid', vmid, 0, false, true, true);
 			if (rec) {
 			    sm.select(rec, true);
 			}
@@ -674,19 +674,19 @@ Ext.define('PVE.dc.BackupView', {
 	    }).show();
 	};
 
-	var edit_btn = new Proxmox.button.Button({
+	let edit_btn = new Proxmox.button.Button({
 	    text: gettext('Edit'),
 	    disabled: true,
 	    selModel: sm,
 	    handler: run_editor,
 	});
 
-	var run_btn = new Proxmox.button.Button({
+	let run_btn = new Proxmox.button.Button({
 	    text: gettext('Run now'),
 	    disabled: true,
 	    selModel: sm,
 	    handler: function() {
-		var rec = sm.getSelection()[0];
+		let rec = sm.getSelection()[0];
 		if (!rec) {
 		    return;
 		}
@@ -706,7 +706,7 @@ Ext.define('PVE.dc.BackupView', {
 	    },
 	});
 
-	var remove_btn = Ext.create('Proxmox.button.StdRemoveButton', {
+	let remove_btn = Ext.create('Proxmox.button.StdRemoveButton', {
 	    selModel: sm,
 	    baseurl: '/cluster/backup',
 	    callback: function() {
@@ -714,7 +714,7 @@ Ext.define('PVE.dc.BackupView', {
 	    },
 	});
 
-	var detail_btn = new Proxmox.button.Button({
+	let detail_btn = new Proxmox.button.Button({
 	    text: gettext('Job Detail'),
 	    disabled: true,
 	    tooltip: gettext('Show job details and which guests and volumes are affected by the backup job'),
@@ -747,7 +747,7 @@ Ext.define('PVE.dc.BackupView', {
 		{
 		    text: gettext('Add'),
 		    handler: function() {
-			var win = Ext.create('PVE.dc.BackupEdit', {});
+			let win = Ext.create('PVE.dc.BackupEdit', {});
 			win.on('destroy', reload);
 			win.show();
 		    },
diff --git a/www/manager6/dc/BackupJobDetail.js b/www/manager6/dc/BackupJobDetail.js
index f1b7a089..658a8789 100644
--- a/www/manager6/dc/BackupJobDetail.js
+++ b/www/manager6/dc/BackupJobDetail.js
@@ -76,13 +76,13 @@ Ext.define('PVE.dc.BackupDiskTree', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.jobid) {
 	    throw "no job id specified";
 	}
 
-	var sm = Ext.create('Ext.selection.TreeModel', {});
+	let sm = Ext.create('Ext.selection.TreeModel', {});
 
 	Ext.apply(me, {
 	    selModel: sm,
@@ -91,7 +91,7 @@ Ext.define('PVE.dc.BackupDiskTree', {
 		    type: 'string',
 		    name: 'iconCls',
 		    calculate: function(data) {
-			var txt = 'fa x-fa-tree fa-';
+			let txt = 'fa x-fa-tree fa-';
 			if (data.leaf && !data.type) {
 			    return txt + 'hdd-o';
 			} else if (data.type === 'qemu') {
@@ -346,7 +346,7 @@ Ext.define('PVE.dc.BackupInfo', {
     ],
 
     setValues: function(values) {
-	var me = this;
+	let me = this;
 	let vm = me.getViewModel();
 
         Ext.iterate(values, function(fieldId, val) {
@@ -401,7 +401,7 @@ Ext.define('PVE.dc.BackupInfo', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.record) {
 	    throw "no data provided";
diff --git a/www/manager6/dc/ClusterEdit.js b/www/manager6/dc/ClusterEdit.js
index 32964fbf..a16707f9 100644
--- a/www/manager6/dc/ClusterEdit.js
+++ b/www/manager6/dc/ClusterEdit.js
@@ -96,8 +96,8 @@ Ext.define('PVE.ClusterInfoWindow', {
 			    if (!field.joinInfo) {
 				return;
 			    }
-			    var jsons = Ext.JSON.encode(field.joinInfo);
-			    var base64s = Ext.util.Base64.encode(jsons);
+			    let jsons = Ext.JSON.encode(field.joinInfo);
+			    let base64s = Ext.util.Base64.encode(jsons);
 			    field.setValue(base64s);
 			},
 		    },
@@ -111,7 +111,7 @@ Ext.define('PVE.ClusterInfoWindow', {
 	items: [{
 	    xtype: 'button',
 	    handler: function(b) {
-		var el = document.getElementById('pveSerializedClusterInfo');
+		let el = document.getElementById('pveSerializedClusterInfo');
 		el.select();
 		document.execCommand("copy");
 	    },
diff --git a/www/manager6/dc/Config.js b/www/manager6/dc/Config.js
index 13ded12e..26e0440f 100644
--- a/www/manager6/dc/Config.js
+++ b/www/manager6/dc/Config.js
@@ -9,9 +9,9 @@ Ext.define('PVE.dc.Config', {
     onlineHelp: 'pve_admin_guide',
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
 	me.items = [];
 
diff --git a/www/manager6/dc/GroupEdit.js b/www/manager6/dc/GroupEdit.js
index d01f7b01..690eab57 100644
--- a/www/manager6/dc/GroupEdit.js
+++ b/www/manager6/dc/GroupEdit.js
@@ -3,12 +3,12 @@ Ext.define('PVE.dc.GroupEdit', {
     alias: ['widget.pveDcGroupEdit'],
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
         me.isCreate = !me.groupid;
 
-        var url;
-        var method;
+        let url;
+        let method;
 
         if (me.isCreate) {
             url = '/api2/extjs/access/groups';
diff --git a/www/manager6/dc/GroupView.js b/www/manager6/dc/GroupView.js
index 388edbe3..155b44e7 100644
--- a/www/manager6/dc/GroupView.js
+++ b/www/manager6/dc/GroupView.js
@@ -9,9 +9,9 @@ Ext.define('PVE.dc.GroupView', {
     stateId: 'grid-groups',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-groups',
 	    sorters: {
 		property: 'groupid',
@@ -19,13 +19,13 @@ Ext.define('PVE.dc.GroupView', {
 	    },
 	});
 
-        var reload = function() {
+        let reload = function() {
             store.load();
         };
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var remove_btn = Ext.create('Proxmox.button.StdRemoveButton', {
+	let remove_btn = Ext.create('Proxmox.button.StdRemoveButton', {
 	    selModel: sm,
 	    callback: function() {
 		reload();
@@ -33,31 +33,31 @@ Ext.define('PVE.dc.GroupView', {
 	    baseurl: '/access/groups/',
 	});
 
-	var run_editor = function() {
-	    var rec = sm.getSelection()[0];
+	let run_editor = function() {
+	    let rec = sm.getSelection()[0];
 	    if (!rec) {
 		return;
 	    }
 
-            var win = Ext.create('PVE.dc.GroupEdit', {
+            let win = Ext.create('PVE.dc.GroupEdit', {
                 groupid: rec.data.groupid,
             });
             win.on('destroy', reload);
             win.show();
 	};
 
-	var edit_btn = new Proxmox.button.Button({
+	let edit_btn = new Proxmox.button.Button({
 	    text: gettext('Edit'),
 	    disabled: true,
 	    selModel: sm,
 	    handler: run_editor,
 	});
 
-	var tbar = [
+	let tbar = [
             {
 		text: gettext('Create'),
 		handler: function() {
-		    var win = Ext.create('PVE.dc.GroupEdit', {});
+		    let win = Ext.create('PVE.dc.GroupEdit', {});
 		    win.on('destroy', reload);
 		    win.show();
 		},
diff --git a/www/manager6/dc/MetricServerView.js b/www/manager6/dc/MetricServerView.js
index c599886f..59113a25 100644
--- a/www/manager6/dc/MetricServerView.js
+++ b/www/manager6/dc/MetricServerView.js
@@ -123,7 +123,7 @@ Ext.define('PVE.dc.MetricServerView', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
 
diff --git a/www/manager6/dc/NodeView.js b/www/manager6/dc/NodeView.js
index ff674233..ed8cc9cb 100644
--- a/www/manager6/dc/NodeView.js
+++ b/www/manager6/dc/NodeView.js
@@ -25,7 +25,7 @@ Ext.define('PVE.dc.NodeView', {
 	    sortable: true,
 	    dataIndex: 'online',
 	    renderer: function(value) {
-		var cls = value?'good':'critical';
+		let cls = value?'good':'critical';
 		return '<i class="fa ' + PVE.Utils.get_health_icon(cls) + '"><i/>';
 	    },
 	},
diff --git a/www/manager6/dc/OptionView.js b/www/manager6/dc/OptionView.js
index 51696982..74cdf2e4 100644
--- a/www/manager6/dc/OptionView.js
+++ b/www/manager6/dc/OptionView.js
@@ -7,7 +7,7 @@ Ext.define('PVE.dc.OptionView', {
     monStoreErrors: true,
 
     add_inputpanel_row: function(name, text, opts) {
-	var me = this;
+	let me = this;
 
 	opts = opts || {};
 	me.rows = me.rows || {};
@@ -27,7 +27,7 @@ Ext.define('PVE.dc.OptionView', {
 		    labelWidth: opts.labelWidth || 100,
 		},
 		setValues: function(values) {
-		    var edit_value = values[name];
+		    let edit_value = values[name];
 
 		    if (opts.parseBeforeSet) {
 			edit_value = PVE.Parser.parsePropertyString(edit_value);
@@ -44,7 +44,7 @@ Ext.define('PVE.dc.OptionView', {
 			if (values === undefined || Object.keys(values).length === 0) {
 			    return { 'delete': name };
 			}
-			var ret_val = {};
+			let ret_val = {};
 			ret_val[name] = PVE.Parser.printPropertyString(values);
 			return ret_val;
 		    },
@@ -66,7 +66,7 @@ Ext.define('PVE.dc.OptionView', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.add_combobox_row('keyboard', gettext('Keyboard Layout'), {
 	    renderer: PVE.Utils.render_kvm_language,
@@ -335,7 +335,7 @@ Ext.define('PVE.dc.OptionView', {
 		return;
 	    }
 
-	    var rec = store.getById('console');
+	    let rec = store.getById('console');
 	    PVE.VersionInfo.console = rec.data.value;
 	    if (rec.data.value === '__default__') {
 		delete PVE.VersionInfo.console;
diff --git a/www/manager6/dc/PoolView.js b/www/manager6/dc/PoolView.js
index db97cbe7..677636d6 100644
--- a/www/manager6/dc/PoolView.js
+++ b/www/manager6/dc/PoolView.js
@@ -9,9 +9,9 @@ Ext.define('PVE.dc.PoolView', {
     stateId: 'grid-pools',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-pools',
 	    sorters: {
 		property: 'poolid',
@@ -19,13 +19,13 @@ Ext.define('PVE.dc.PoolView', {
 	    },
 	});
 
-        var reload = function() {
+        let reload = function() {
             store.load();
         };
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var remove_btn = Ext.create('Proxmox.button.StdRemoveButton', {
+	let remove_btn = Ext.create('Proxmox.button.StdRemoveButton', {
 	    selModel: sm,
 	    baseurl: '/pools/',
 	    callback: function() {
@@ -33,31 +33,31 @@ Ext.define('PVE.dc.PoolView', {
 	    },
 	});
 
-	var run_editor = function() {
-	    var rec = sm.getSelection()[0];
+	let run_editor = function() {
+	    let rec = sm.getSelection()[0];
 	    if (!rec) {
 		return;
 	    }
 
-            var win = Ext.create('PVE.dc.PoolEdit', {
+            let win = Ext.create('PVE.dc.PoolEdit', {
                 poolid: rec.data.poolid,
             });
             win.on('destroy', reload);
             win.show();
 	};
 
-	var edit_btn = new Proxmox.button.Button({
+	let edit_btn = new Proxmox.button.Button({
 	    text: gettext('Edit'),
 	    disabled: true,
 	    selModel: sm,
 	    handler: run_editor,
 	});
 
-	var tbar = [
+	let tbar = [
             {
 		text: gettext('Create'),
 		handler: function() {
-		    var win = Ext.create('PVE.dc.PoolEdit', {});
+		    let win = Ext.create('PVE.dc.PoolEdit', {});
 		    win.on('destroy', reload);
 		    win.show();
 		},
diff --git a/www/manager6/dc/RoleEdit.js b/www/manager6/dc/RoleEdit.js
index c8658647..560b95a7 100644
--- a/www/manager6/dc/RoleEdit.js
+++ b/www/manager6/dc/RoleEdit.js
@@ -5,12 +5,12 @@ Ext.define('PVE.dc.RoleEdit', {
     width: 400,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = !me.roleid;
 
-	var url;
-	var method;
+	let url;
+	let method;
 
 	if (me.isCreate) {
 	    url = '/api2/extjs/access/roles';
@@ -47,8 +47,8 @@ Ext.define('PVE.dc.RoleEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response) {
-		    var data = response.result.data;
-		    var keys = Ext.Object.getKeys(data);
+		    let data = response.result.data;
+		    let keys = Ext.Object.getKeys(data);
 
 		    me.setValues({
 			privs: keys,
diff --git a/www/manager6/dc/SecurityGroups.js b/www/manager6/dc/SecurityGroups.js
index 5fb6860d..22b98c5f 100644
--- a/www/manager6/dc/SecurityGroups.js
+++ b/www/manager6/dc/SecurityGroups.js
@@ -13,16 +13,16 @@ Ext.define('PVE.SecurityGroupEdit', {
     allow_iface: false,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = me.group_name === undefined;
 
-	var subject;
+	let subject;
 
         me.url = '/api2/extjs' + me.base_url;
         me.method = 'POST';
 
-	var items = [
+	let items = [
 	    {
 		xtype: 'textfield',
 		name: 'group',
@@ -49,7 +49,7 @@ Ext.define('PVE.SecurityGroupEdit', {
 	    });
         }
 
-	var ipanel = Ext.create('Proxmox.panel.InputPanel', {
+	let ipanel = Ext.create('Proxmox.panel.InputPanel', {
 	// InputPanel does not have a 'create' property, does it need a 'isCreate'
 	    isCreate: me.isCreate,
 	    items: items,
@@ -138,7 +138,7 @@ Ext.define('PVE.SecurityGroupList', {
 	    text: gettext('Create'),
 	    handler: function() {
 		sm.deselectAll();
-		var win = Ext.create('PVE.SecurityGroupEdit', {});
+		let win = Ext.create('PVE.SecurityGroupEdit', {});
 		win.show();
 		win.on('destroy', reload);
 	    },
diff --git a/www/manager6/dc/Summary.js b/www/manager6/dc/Summary.js
index 8ea60267..65f69d70 100644
--- a/www/manager6/dc/Summary.js
+++ b/www/manager6/dc/Summary.js
@@ -80,9 +80,9 @@ Ext.define('PVE.dc.Summary', {
     },
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var rstore = Ext.create('Proxmox.data.UpdateStore', {
+	let rstore = Ext.create('Proxmox.data.UpdateStore', {
 	    interval: 3000,
 	    storeid: 'pve-cluster-status',
 	    model: 'pve-dc-nodes',
@@ -92,7 +92,7 @@ Ext.define('PVE.dc.Summary', {
 	    },
 	});
 
-	var gridstore = Ext.create('Proxmox.data.DiffStore', {
+	let gridstore = Ext.create('Proxmox.data.DiffStore', {
 	    rstore: rstore,
 	    filters: {
 		property: 'type',
@@ -108,12 +108,12 @@ Ext.define('PVE.dc.Summary', {
 
 	me.getComponent('nodeview').setStore(gridstore);
 
-	var gueststatus = me.getComponent('dcGuests');
+	let gueststatus = me.getComponent('dcGuests');
 
-	var cpustat = me.down('#cpu');
-	var memorystat = me.down('#memory');
-	var storagestat = me.down('#storage');
-	var sp = Ext.state.Manager.getProvider();
+	let cpustat = me.down('#cpu');
+	let memorystat = me.down('#memory');
+	let storagestat = me.down('#storage');
+	let sp = Ext.state.Manager.getProvider();
 
 	me.mon(PVE.data.ResourceStore, 'load', function(curstore, results) {
 	    me.suspendLayout = true;
@@ -211,8 +211,8 @@ Ext.define('PVE.dc.Summary', {
 
 	let subs = me.down('#subscriptions');
 	me.mon(rstore, 'load', function(store, records, success) {
-	    var level;
-	    var mixed = false;
+	    let level;
+	    let mixed = false;
 	    for (let i = 0; i < records.length; i++) {
 		let node = records[i];
 		if (node.get('type') !== 'node' || node.get('status') === 'offline') {
diff --git a/www/manager6/dc/Support.js b/www/manager6/dc/Support.js
index 1b51e5ba..c371b823 100644
--- a/www/manager6/dc/Support.js
+++ b/www/manager6/dc/Support.js
@@ -13,9 +13,9 @@ Ext.define('PVE.dc.Support', {
     bugzillaHtml: '<h1>Bug Tracking</h1>Our bug tracking system is available <a target="_blank" href="https://bugzilla.proxmox.com">here</a>.',
 
     docuHtml: function() {
-	var me = this;
-	var guideUrl = window.location.origin + me.pveGuidePath;
-	var text = Ext.String.format('<h1>Documentation</h1>'
+	let me = this;
+	let guideUrl = window.location.origin + me.pveGuidePath;
+	let text = Ext.String.format('<h1>Documentation</h1>'
 	+ 'The official Proxmox VE Administration Guide'
 	+ ' is included with this installation and can be browsed at '
 	+ '<a target="_blank" href="{0}">{0}</a>', guideUrl);
@@ -23,9 +23,9 @@ Ext.define('PVE.dc.Support', {
     },
 
     updateActive: function(data) {
-	var me = this;
+	let me = this;
 
-	var html = '<h1>' + data.productname + '</h1>' + me.activeHtml;
+	let html = '<h1>' + data.productname + '</h1>' + me.activeHtml;
 	html += '<br><br>' + me.docuHtml();
 	html += '<br><br>' + me.bugzillaHtml;
 
@@ -33,9 +33,9 @@ Ext.define('PVE.dc.Support', {
     },
 
     updateCommunity: function(data) {
-	var me = this;
+	let me = this;
 
-	var html = '<h1>' + data.productname + '</h1>' + me.communityHtml;
+	let html = '<h1>' + data.productname + '</h1>' + me.communityHtml;
 	html += '<br><br>' + me.docuHtml();
 	html += '<br><br>' + me.bugzillaHtml;
 
@@ -43,7 +43,7 @@ Ext.define('PVE.dc.Support', {
     },
 
     updateInactive: function(data) {
-	var me = this;
+	let me = this;
 	me.update(me.invalidHtml);
     },
 
diff --git a/www/manager6/dc/Tasks.js b/www/manager6/dc/Tasks.js
index 5344ede4..258b690d 100644
--- a/www/manager6/dc/Tasks.js
+++ b/www/manager6/dc/Tasks.js
@@ -36,13 +36,13 @@ Ext.define('PVE.dc.Tasks', {
 	});
 
 	let run_task_viewer = function() {
-	    var sm = me.getSelectionModel();
-	    var rec = sm.getSelection()[0];
+	    let sm = me.getSelectionModel();
+	    let rec = sm.getSelection()[0];
 	    if (!rec) {
 		return;
 	    }
 
-	    var win = Ext.create('Proxmox.window.TaskViewer', {
+	    let win = Ext.create('Proxmox.window.TaskViewer', {
 		upid: rec.data.upid,
 		endtime: rec.data.endtime,
 	    });
diff --git a/www/manager6/dc/UserEdit.js b/www/manager6/dc/UserEdit.js
index b637cd53..4f04d028 100644
--- a/www/manager6/dc/UserEdit.js
+++ b/www/manager6/dc/UserEdit.js
@@ -116,7 +116,7 @@ Ext.define('PVE.dc.UserEdit', {
 	    });
 	}
 
-	var ipanel = Ext.create('Proxmox.panel.InputPanel', {
+	let ipanel = Ext.create('Proxmox.panel.InputPanel', {
 	    column1: column1,
 	    column2: column2,
 	    columnB: [
@@ -159,7 +159,7 @@ Ext.define('PVE.dc.UserEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var data = response.result.data;
+		    let data = response.result.data;
 		    me.setValues(data);
 		    if (data.keys) {
 			if (data.keys === 'x!oath' || data.keys === 'x!u2f') {
diff --git a/www/manager6/dc/UserView.js b/www/manager6/dc/UserView.js
index bbfc4f7c..e7920bac 100644
--- a/www/manager6/dc/UserView.js
+++ b/www/manager6/dc/UserView.js
@@ -9,11 +9,11 @@ Ext.define('PVE.dc.UserView', {
     stateId: 'grid-users',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
             id: "users",
 	    model: 'pmx-users',
 	    sorters: {
@@ -33,7 +33,7 @@ Ext.define('PVE.dc.UserView', {
 	    callback: () => reload(),
 	});
 	let run_editor = function() {
-	    var rec = sm.getSelection()[0];
+	    let rec = sm.getSelection()[0];
 	    if (!rec || !caps.access['User.Modify']) {
 		return;
 	    }
@@ -78,7 +78,7 @@ Ext.define('PVE.dc.UserView', {
 	    },
 	});
 
-	var perm_btn = new Proxmox.button.Button({
+	let perm_btn = new Proxmox.button.Button({
 	    text: gettext('Permissions'),
 	    disabled: true,
 	    selModel: sm,
diff --git a/www/manager6/form/AgentFeatureSelector.js b/www/manager6/form/AgentFeatureSelector.js
index 0dcc6ecb..f91497a3 100644
--- a/www/manager6/form/AgentFeatureSelector.js
+++ b/www/manager6/form/AgentFeatureSelector.js
@@ -47,7 +47,7 @@ Ext.define('PVE.form.AgentFeatureSelector', {
     ],
 
     onGetValues: function(values) {
-	var agentstr = PVE.Parser.printPropertyString(values, 'enabled');
+	let agentstr = PVE.Parser.printPropertyString(values, 'enabled');
 	return { agent: agentstr };
     },
 
diff --git a/www/manager6/form/BridgeSelector.js b/www/manager6/form/BridgeSelector.js
index 350588cd..e7dd3d7e 100644
--- a/www/manager6/form/BridgeSelector.js
+++ b/www/manager6/form/BridgeSelector.js
@@ -40,7 +40,7 @@ Ext.define('PVE.form.BridgeSelector', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 
 	if (!nodename || me.nodename === nodename) {
 	    return;
@@ -58,9 +58,9 @@ Ext.define('PVE.form.BridgeSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.nodename;
+	let nodename = me.nodename;
 	me.nodename = undefined;
 
         me.callParent();
diff --git a/www/manager6/form/BusTypeSelector.js b/www/manager6/form/BusTypeSelector.js
index 0f040229..c585b121 100644
--- a/www/manager6/form/BusTypeSelector.js
+++ b/www/manager6/form/BusTypeSelector.js
@@ -6,7 +6,7 @@ Ext.define('PVE.form.BusTypeSelector', {
     withUnused: false,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.comboItems = [['ide', 'IDE'], ['sata', 'SATA']];
 
diff --git a/www/manager6/form/CephFSSelector.js b/www/manager6/form/CephFSSelector.js
index 3c86e3cf..46798edb 100644
--- a/www/manager6/form/CephFSSelector.js
+++ b/www/manager6/form/CephFSSelector.js
@@ -9,13 +9,13 @@ Ext.define('PVE.form.CephFSSelector', {
     queryMode: 'local',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no nodename given";
 	}
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    fields: ['name'],
 	    sorters: 'name',
 	    proxy: {
diff --git a/www/manager6/form/CephPoolSelector.js b/www/manager6/form/CephPoolSelector.js
index 5b96398d..6e7460cf 100644
--- a/www/manager6/form/CephPoolSelector.js
+++ b/www/manager6/form/CephPoolSelector.js
@@ -9,13 +9,13 @@ Ext.define('PVE.form.CephPoolSelector', {
     queryMode: 'local',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no nodename given";
 	}
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    fields: ['name'],
 	    sorters: 'name',
 	    proxy: {
diff --git a/www/manager6/form/ContentTypeSelector.js b/www/manager6/form/ContentTypeSelector.js
index d0fa0b08..b8984314 100644
--- a/www/manager6/form/ContentTypeSelector.js
+++ b/www/manager6/form/ContentTypeSelector.js
@@ -5,7 +5,7 @@ Ext.define('PVE.form.ContentTypeSelector', {
     cts: undefined,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.comboItems = [];
 
diff --git a/www/manager6/form/ControllerSelector.js b/www/manager6/form/ControllerSelector.js
index d84c49d6..64d80e18 100644
--- a/www/manager6/form/ControllerSelector.js
+++ b/www/manager6/form/ControllerSelector.js
@@ -59,7 +59,7 @@ Ext.define('PVE.form.ControllerSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	Ext.apply(me, {
 	    fieldLabel: gettext('Bus/Device'),
diff --git a/www/manager6/form/DayOfWeekSelector.js b/www/manager6/form/DayOfWeekSelector.js
index a8d46246..80369935 100644
--- a/www/manager6/form/DayOfWeekSelector.js
+++ b/www/manager6/form/DayOfWeekSelector.js
@@ -3,7 +3,7 @@ Ext.define('PVE.form.DayOfWeekSelector', {
     alias: ['widget.pveDayOfWeekSelector'],
     comboItems: [],
     initComponent: function() {
-	var me = this;
+	let me = this;
 	me.comboItems = [
 	    ['mon', Ext.util.Format.htmlDecode(Ext.Date.dayNames[1])],
 	    ['tue', Ext.util.Format.htmlDecode(Ext.Date.dayNames[2])],
diff --git a/www/manager6/form/DiskStorageSelector.js b/www/manager6/form/DiskStorageSelector.js
index abd46deb..cb05c328 100644
--- a/www/manager6/form/DiskStorageSelector.js
+++ b/www/manager6/form/DiskStorageSelector.js
@@ -36,10 +36,10 @@ Ext.define('PVE.form.DiskStorageSelector', {
     defaultSize: '32',
 
     changeStorage: function(f, value) {
-	var me = this;
-	var formatsel = me.getComponent('diskformat');
-	var hdfilesel = me.getComponent('hdimage');
-	var hdsizesel = me.getComponent('disksize');
+	let me = this;
+	let formatsel = me.getComponent('diskformat');
+	let hdfilesel = me.getComponent('hdimage');
+	let hdsizesel = me.getComponent('disksize');
 
 	// initial store load, and reset/deletion of the storage
 	if (!value) {
@@ -50,7 +50,7 @@ Ext.define('PVE.form.DiskStorageSelector', {
 	    return;
 	}
 
-	var rec = f.store.getById(value);
+	let rec = f.store.getById(value);
 	// if the storage is not defined, or valid,
 	// we cannot know what to enable/disable
 	if (!rec) {
@@ -71,7 +71,7 @@ Ext.define('PVE.form.DiskStorageSelector', {
 	    }
 	}
 
-	var select = !!rec.data.select_existing && !me.hideSelection;
+	let select = !!rec.data.select_existing && !me.hideSelection;
 
 	formatsel.setDisabled(me.hideFormat || Ext.Object.getSize(validFormats) <= 1);
 	formatsel.setValue(selectFormat);
@@ -87,17 +87,17 @@ Ext.define('PVE.form.DiskStorageSelector', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
-	var hdstorage = me.getComponent('hdstorage');
-	var hdfilesel = me.getComponent('hdimage');
+	let me = this;
+	let hdstorage = me.getComponent('hdstorage');
+	let hdfilesel = me.getComponent('hdimage');
 
 	hdstorage.setNodename(nodename);
 	hdfilesel.setNodename(nodename);
     },
 
     setDisabled: function(value) {
-	var me = this;
-	var hdstorage = me.getComponent('hdstorage');
+	let me = this;
+	let hdstorage = me.getComponent('hdstorage');
 
 	// reset on disable
 	if (value) {
@@ -111,7 +111,7 @@ Ext.define('PVE.form.DiskStorageSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/form/FileSelector.js b/www/manager6/form/FileSelector.js
index ef2bedf9..35173978 100644
--- a/www/manager6/form/FileSelector.js
+++ b/www/manager6/form/FileSelector.js
@@ -8,7 +8,7 @@ Ext.define('PVE.form.FileSelector', {
 
     listeners: {
 	afterrender: function() {
-	    var me = this;
+	    let me = this;
 	    if (!me.disabled) {
 		me.setStorage(me.storage, me.nodename);
 	    }
@@ -16,9 +16,9 @@ Ext.define('PVE.form.FileSelector', {
     },
 
     setStorage: function(storage, nodename) {
-	var me = this;
+	let me = this;
 
-	var change = false;
+	let change = false;
 	if (storage && me.storage !== storage) {
 	    me.storage = storage;
 	    change = true;
@@ -33,7 +33,7 @@ Ext.define('PVE.form.FileSelector', {
 	    return;
 	}
 
-	var url = '/api2/json/nodes/' + me.nodename + '/storage/' + me.storage + '/content';
+	let url = '/api2/json/nodes/' + me.nodename + '/storage/' + me.storage + '/content';
 	if (me.storageContent) {
 	    url += '?content=' + me.storageContent;
 	}
diff --git a/www/manager6/form/GlobalSearchField.js b/www/manager6/form/GlobalSearchField.js
index 267a480d..abd4a8a3 100644
--- a/www/manager6/form/GlobalSearchField.js
+++ b/www/manager6/form/GlobalSearchField.js
@@ -39,7 +39,7 @@ Ext.define('PVE.form.GlobalSearchField', {
 	},
 
 	hideMe: function() {
-	    var me = this;
+	    let me = this;
 	    if (typeof me.ctxMenu !== 'undefined' && me.ctxMenu.isVisible()) {
 		return;
 	    }
@@ -50,17 +50,17 @@ Ext.define('PVE.form.GlobalSearchField', {
 	},
 
 	setFocus: function() {
-	    var me = this;
+	    let me = this;
 	    me.hasFocus = true;
 	},
 
 	listeners: {
 	    rowclick: function(grid, record) {
-		var me = this;
+		let me = this;
 		me.textfield.selectAndHide(record.id);
 	    },
 	    itemcontextmenu: function(v, record, item, index, event) {
-		var me = this;
+		let me = this;
 		me.ctxMenu = PVE.Utils.createCmdMenu(v, record, item, index, event);
 	    },
 	    focusleave: 'hideMe',
@@ -139,7 +139,7 @@ Ext.define('PVE.form.GlobalSearchField', {
     },
 
     selectAndHide: function(id) {
-	var me = this;
+	let me = this;
 	me.tree.selectById(id);
 	me.grid.hide();
 	me.setValue('');
@@ -147,8 +147,8 @@ Ext.define('PVE.form.GlobalSearchField', {
     },
 
     onKey: function(field, e) {
-	var me = this;
-	var key = e.getKey();
+	let me = this;
+	let key = e.getKey();
 
 	switch (key) {
 	    case Ext.event.Event.ENTER:
diff --git a/www/manager6/form/GroupSelector.js b/www/manager6/form/GroupSelector.js
index 90fa1827..ac5c34d8 100644
--- a/www/manager6/form/GroupSelector.js
+++ b/www/manager6/form/GroupSelector.js
@@ -42,9 +42,9 @@ Ext.define('PVE.form.GroupSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-groups',
 	    sorters: [{
 		property: 'groupid',
diff --git a/www/manager6/form/GuestIDSelector.js b/www/manager6/form/GuestIDSelector.js
index e24c01c9..13d9ac55 100644
--- a/www/manager6/form/GuestIDSelector.js
+++ b/www/manager6/form/GuestIDSelector.js
@@ -15,7 +15,7 @@ Ext.define('PVE.form.GuestIDSelector', {
     guestType: undefined,
 
     validator: function(value) {
-	var me = this;
+	let me = this;
 
 	if (!Ext.isNumeric(value) ||
 	    value < me.minValue ||
@@ -36,11 +36,11 @@ Ext.define('PVE.form.GuestIDSelector', {
     },
 
     initComponent: function() {
-	var me = this;
-	var label = '{0} ID';
-	var unknownID = gettext('This {0} ID does not exist');
-	var inUseID = gettext('This {0} ID is already in use');
-	var type = 'CT/VM';
+	let me = this;
+	let label = '{0} ID';
+	let unknownID = gettext('This {0} ID does not exist');
+	let inUseID = gettext('This {0} ID is already in use');
+	let type = 'CT/VM';
 
 	if (me.guestType === 'lxc') {
 	    type = 'CT';
diff --git a/www/manager6/form/HotplugFeatureSelector.js b/www/manager6/form/HotplugFeatureSelector.js
index cb9fc552..9736faa9 100644
--- a/www/manager6/form/HotplugFeatureSelector.js
+++ b/www/manager6/form/HotplugFeatureSelector.js
@@ -36,8 +36,8 @@ Ext.define('PVE.form.HotplugFeatureSelector', {
     ],
 
     setValue: function(value) {
-	var me = this;
-	var newVal = [];
+	let me = this;
+	let newVal = [];
 	if (value === '1') {
 	    newVal = ['disk', 'network', 'usb'];
 	} else if (value !== '0') {
@@ -49,7 +49,7 @@ Ext.define('PVE.form.HotplugFeatureSelector', {
     // override framework function to
     // assemble the hotplug value
     getSubmitData: function() {
-	var me = this,
+	let me = this,
 	boxes = me.getBoxes(),
 	data = [];
 	Ext.Array.forEach(boxes, function(box) {
diff --git a/www/manager6/form/IPRefSelector.js b/www/manager6/form/IPRefSelector.js
index 9ccc2fe1..b4788900 100644
--- a/www/manager6/form/IPRefSelector.js
+++ b/www/manager6/form/IPRefSelector.js
@@ -13,18 +13,18 @@ Ext.define('PVE.form.IPRefSelector', {
     notFoundIsValid: true,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.base_url) {
 	    throw "no base_url specified";
 	}
 
-	var url = "/api2/json" + me.base_url;
+	let url = "/api2/json" + me.base_url;
 	if (me.ref_type) {
 	    url += "?type=" + me.ref_type;
 	}
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    autoLoad: true,
 	    fields: ['type', 'name', 'ref', 'comment'],
 	    idProperty: 'ref',
@@ -38,7 +38,7 @@ Ext.define('PVE.form.IPRefSelector', {
 	    },
 	});
 
-	var disable_query_for_ips = function(f, value) {
+	let disable_query_for_ips = function(f, value) {
 	    if (value === null ||
 		value.match(/^\d/)) { // IP address starts with \d
 		f.queryDelay = 9999999999; // hack: disable with long delay
@@ -47,7 +47,7 @@ Ext.define('PVE.form.IPRefSelector', {
 	    }
 	};
 
-	var columns = [];
+	let columns = [];
 
 	if (!me.ref_type) {
 	    columns.push({
diff --git a/www/manager6/form/MDevSelector.js b/www/manager6/form/MDevSelector.js
index 8ee73c0c..b25c2b12 100644
--- a/www/manager6/form/MDevSelector.js
+++ b/www/manager6/form/MDevSelector.js
@@ -43,7 +43,7 @@ Ext.define('PVE.form.MDevSelector', {
     },
 
     setPciID: function(pciid, force) {
-	var me = this;
+	let me = this;
 
 	if (!force && (!pciid || me.pciid === pciid)) {
 	    return;
@@ -55,7 +55,7 @@ Ext.define('PVE.form.MDevSelector', {
 
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 
 	if (!nodename || me.nodename === nodename) {
 	    return;
@@ -66,7 +66,7 @@ Ext.define('PVE.form.MDevSelector', {
     },
 
     updateProxy: function() {
-	var me = this;
+	let me = this;
 	me.store.setProxy({
 	    type: 'proxmox',
 	    url: '/api2/json/nodes/' + me.nodename + '/hardware/pci/' + me.pciid + '/mdev',
@@ -75,7 +75,7 @@ Ext.define('PVE.form.MDevSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw 'no node name specified';
diff --git a/www/manager6/form/MemoryField.js b/www/manager6/form/MemoryField.js
index 10b7ff36..203c92b5 100644
--- a/www/manager6/form/MemoryField.js
+++ b/www/manager6/form/MemoryField.js
@@ -19,21 +19,21 @@ Ext.define('PVE.form.MemoryField', {
     allowExponential: false,
 
     computeUpDown: function(value) {
-	var me = this;
+	let me = this;
 
 	if (!me.hotplug) {
 	    return { up: value + me.step, down: value - me.step };
 	}
 
-	var dimm_size = 512;
-	var prev_dimm_size = 0;
-	var min_size = 1024;
-	var current_size = min_size;
-	var value_up = min_size;
-	var value_down = min_size;
-	var value_start = min_size;
+	let dimm_size = 512;
+	let prev_dimm_size = 0;
+	let min_size = 1024;
+	let current_size = min_size;
+	let value_up = min_size;
+	let value_down = min_size;
+	let value_start = min_size;
 
-	var i, j;
+	let i, j;
 	for (j = 0; j < 9; j++) {
 	    for (i = 0; i < 32; i++) {
 		if (value >= current_size && value < current_size + dimm_size) {
@@ -51,30 +51,30 @@ Ext.define('PVE.form.MemoryField', {
     },
 
     onSpinUp: function() {
-	var me = this;
+	let me = this;
 	if (!me.readOnly) {
-	    var res = me.computeUpDown(me.getValue());
+	    let res = me.computeUpDown(me.getValue());
 	    me.setValue(Ext.Number.constrain(res.up, me.minValue, me.maxValue));
 	}
     },
 
     onSpinDown: function() {
-	var me = this;
+	let me = this;
 	if (!me.readOnly) {
-	    var res = me.computeUpDown(me.getValue());
+	    let res = me.computeUpDown(me.getValue());
 	    me.setValue(Ext.Number.constrain(res.down, me.minValue, me.maxValue));
 	}
     },
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	if (me.hotplug) {
 	    me.minValue = 1024;
 
 	    me.on('blur', function(field) {
-		var value = me.getValue();
-		var res = me.computeUpDown(value);
+		let value = me.getValue();
+		let res = me.computeUpDown(value);
 		if (value === res.start || value === res.up || value === res.down) {
 		    return;
 		}
diff --git a/www/manager6/form/NodeSelector.js b/www/manager6/form/NodeSelector.js
index c3e3da31..7897576c 100644
--- a/www/manager6/form/NodeSelector.js
+++ b/www/manager6/form/NodeSelector.js
@@ -88,7 +88,7 @@ Ext.define('PVE.form.NodeSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (me.selectCurNode && PVE.curSelectedNode && PVE.curSelectedNode.data.node) {
 	    me.preferredValue = PVE.curSelectedNode.data.node;
diff --git a/www/manager6/form/PCISelector.js b/www/manager6/form/PCISelector.js
index 4e0a778f..a30049fb 100644
--- a/www/manager6/form/PCISelector.js
+++ b/www/manager6/form/PCISelector.js
@@ -57,7 +57,7 @@ Ext.define('PVE.form.PCISelector', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 
 	if (!nodename || me.nodename === nodename) {
 	    return;
@@ -74,9 +74,9 @@ Ext.define('PVE.form.PCISelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.nodename;
+	let nodename = me.nodename;
 	me.nodename = undefined;
 
         me.callParent();
diff --git a/www/manager6/form/PoolSelector.js b/www/manager6/form/PoolSelector.js
index 3c464891..554cbe67 100644
--- a/www/manager6/form/PoolSelector.js
+++ b/www/manager6/form/PoolSelector.js
@@ -7,9 +7,9 @@ Ext.define('PVE.form.PoolSelector', {
     displayField: 'poolid',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-pools',
 	    sorters: 'poolid',
 	});
diff --git a/www/manager6/form/QemuBiosSelector.js b/www/manager6/form/QemuBiosSelector.js
index f9d047c0..afb0bbff 100644
--- a/www/manager6/form/QemuBiosSelector.js
+++ b/www/manager6/form/QemuBiosSelector.js
@@ -3,7 +3,7 @@ Ext.define('PVE.form.QemuBiosSelector', {
     alias: ['widget.pveQemuBiosSelector'],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
         me.comboItems = [
 	    ['__default__', PVE.Utils.render_qemu_bios('')],
diff --git a/www/manager6/form/SDNControllerSelector.js b/www/manager6/form/SDNControllerSelector.js
index 639d7b50..a89d1c30 100644
--- a/www/manager6/form/SDNControllerSelector.js
+++ b/www/manager6/form/SDNControllerSelector.js
@@ -7,9 +7,9 @@ Ext.define('PVE.form.SDNControllerSelector', {
     displayField: 'controller',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-sdn-controller',
             sorters: {
                 property: 'controller',
diff --git a/www/manager6/form/SDNDnsSelector.js b/www/manager6/form/SDNDnsSelector.js
index c97a342f..4cf26aac 100644
--- a/www/manager6/form/SDNDnsSelector.js
+++ b/www/manager6/form/SDNDnsSelector.js
@@ -7,9 +7,9 @@ Ext.define('PVE.form.SDNDnsSelector', {
     displayField: 'dns',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-sdn-dns',
             sorters: {
                 property: 'dns',
diff --git a/www/manager6/form/SDNIpamSelector.js b/www/manager6/form/SDNIpamSelector.js
index b60e75d6..1726512d 100644
--- a/www/manager6/form/SDNIpamSelector.js
+++ b/www/manager6/form/SDNIpamSelector.js
@@ -7,9 +7,9 @@ Ext.define('PVE.form.SDNIpamSelector', {
     displayField: 'ipam',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-sdn-ipam',
             sorters: {
                 property: 'ipam',
diff --git a/www/manager6/form/SDNVnetSelector.js b/www/manager6/form/SDNVnetSelector.js
index b6da85be..248be3f7 100644
--- a/www/manager6/form/SDNVnetSelector.js
+++ b/www/manager6/form/SDNVnetSelector.js
@@ -7,9 +7,9 @@ Ext.define('PVE.form.SDNVnetSelector', {
     displayField: 'vnet',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-sdn-vnet',
             sorters: {
                 property: 'vnet',
diff --git a/www/manager6/form/SDNZoneSelector.js b/www/manager6/form/SDNZoneSelector.js
index 28c3457d..95e3faef 100644
--- a/www/manager6/form/SDNZoneSelector.js
+++ b/www/manager6/form/SDNZoneSelector.js
@@ -7,9 +7,9 @@ Ext.define('PVE.form.SDNZoneSelector', {
     displayField: 'zone',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-sdn-zone',
             sorters: {
                 property: 'zone',
diff --git a/www/manager6/form/SecurityGroupSelector.js b/www/manager6/form/SecurityGroupSelector.js
index 64db7542..2519bcba 100644
--- a/www/manager6/form/SecurityGroupSelector.js
+++ b/www/manager6/form/SecurityGroupSelector.js
@@ -5,9 +5,9 @@ Ext.define('PVE.form.SecurityGroupsSelector', {
     valueField: 'group',
     displayField: 'group',
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    autoLoad: true,
 	    fields: ['group', 'comment'],
 	    idProperty: 'group',
diff --git a/www/manager6/form/SnapshotSelector.js b/www/manager6/form/SnapshotSelector.js
index 4155269b..c4378ea4 100644
--- a/www/manager6/form/SnapshotSelector.js
+++ b/www/manager6/form/SnapshotSelector.js
@@ -6,7 +6,7 @@ Ext.define('PVE.form.SnapshotSelector', {
     displayField: 'name',
 
     loadStore: function(nodename, vmid) {
-	var me = this;
+	let me = this;
 
 	if (!nodename) {
 	    return;
@@ -29,7 +29,7 @@ Ext.define('PVE.form.SnapshotSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
         if (!me.nodename) {
             throw "no node name specified";
@@ -43,7 +43,7 @@ Ext.define('PVE.form.SnapshotSelector', {
 	    throw "no guest type specified";
 	}
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    fields: ['name'],
 	    filterOnLoad: true,
 	});
diff --git a/www/manager6/form/SpiceEnhancementSelector.js b/www/manager6/form/SpiceEnhancementSelector.js
index 525479e2..5c39d8c6 100644
--- a/www/manager6/form/SpiceEnhancementSelector.js
+++ b/www/manager6/form/SpiceEnhancementSelector.js
@@ -44,7 +44,7 @@ Ext.define('PVE.form.SpiceEnhancementSelector', {
     ],
 
     onGetValues: function(values) {
-	var ret = {};
+	let ret = {};
 
 	if (values.videostreaming !== "off") {
 	    ret.videostreaming = values.videostreaming;
@@ -55,17 +55,17 @@ Ext.define('PVE.form.SpiceEnhancementSelector', {
 	if (Ext.Object.isEmpty(ret)) {
 	    return { 'delete': 'spice_enhancements' };
 	}
-	var enhancements = PVE.Parser.printPropertyString(ret);
+	let enhancements = PVE.Parser.printPropertyString(ret);
 	return { spice_enhancements: enhancements };
     },
 
     setValues: function(values) {
-	var vga = PVE.Parser.parsePropertyString(values.vga, 'type');
+	let vga = PVE.Parser.parsePropertyString(values.vga, 'type');
 	if (!/^qxl\d?$/.test(vga.type)) {
 	    this.down('#spicehint').setVisible(true);
 	}
 	if (values.spice_enhancements) {
-	    var enhancements = PVE.Parser.parsePropertyString(values.spice_enhancements);
+	    let enhancements = PVE.Parser.parsePropertyString(values.spice_enhancements);
 	    enhancements.foldersharing = PVE.Parser.parseBoolean(enhancements.foldersharing, 0);
 	    this.callParent([enhancements]);
 	}
diff --git a/www/manager6/form/StorageSelector.js b/www/manager6/form/StorageSelector.js
index 872bc1ab..981d5182 100644
--- a/www/manager6/form/StorageSelector.js
+++ b/www/manager6/form/StorageSelector.js
@@ -118,7 +118,7 @@ Ext.define('PVE.form.StorageSelector', {
     },
 
     setTargetNode: function(targetNode) {
-	var me = this;
+	let me = this;
 
 	if (!targetNode || me.targetNode === targetNode) {
 	    return;
@@ -134,7 +134,7 @@ Ext.define('PVE.form.StorageSelector', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 
 	nodename = nodename || '';
 
@@ -148,12 +148,12 @@ Ext.define('PVE.form.StorageSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	let nodename = me.nodename;
 	me.nodename = undefined;
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    model: 'pve-storage-status',
 	    sorters: {
 		property: 'storage',
diff --git a/www/manager6/form/USBSelector.js b/www/manager6/form/USBSelector.js
index 0d511699..c3fe3802 100644
--- a/www/manager6/form/USBSelector.js
+++ b/www/manager6/form/USBSelector.js
@@ -10,7 +10,7 @@ Ext.define('PVE.form.USBSelector', {
     editable: true,
 
     validator: function(value) {
-	var me = this;
+	let me = this;
 	if (!value) {
 	    return true; // handled later by allowEmpty in the getErrors call chain
 	}
@@ -24,9 +24,9 @@ Ext.define('PVE.form.USBSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 
 	if (!nodename) {
 	    throw "no nodename specified";
diff --git a/www/manager6/form/VLanField.js b/www/manager6/form/VLanField.js
index 7379789a..b38196e4 100644
--- a/www/manager6/form/VLanField.js
+++ b/www/manager6/form/VLanField.js
@@ -11,7 +11,7 @@ Ext.define('PVE.form.VlanField', {
     allowBlank: true,
 
     getSubmitData: function() {
-        var me = this,
+        let me = this,
             data = null,
             val;
         if (!me.disabled && me.submitValue) {
@@ -28,7 +28,7 @@ Ext.define('PVE.form.VlanField', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	Ext.apply(me, {
 	    minValue: 1,
diff --git a/www/manager6/form/VMCPUFlagSelector.js b/www/manager6/form/VMCPUFlagSelector.js
index ace3c531..7901732f 100644
--- a/www/manager6/form/VMCPUFlagSelector.js
+++ b/www/manager6/form/VMCPUFlagSelector.js
@@ -42,15 +42,15 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
     },
 
     getValue: function() {
-	var me = this;
-	var store = me.getStore();
-	var flags = '';
+	let me = this;
+	let store = me.getStore();
+	let flags = '';
 
 	// ExtJS does not has a nice getAllRecords interface for stores :/
 	store.queryBy(Ext.returnTrue).each(function(rec) {
-	    var s = rec.get('state');
+	    let s = rec.get('state');
 	    if (s && s !== '=') {
-		var f = rec.get('flag');
+		let f = rec.get('flag');
 		if (flags === '') {
 		    flags = s + f;
 		} else {
@@ -65,8 +65,8 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
     },
 
     setValue: function(value) {
-	var me = this;
-	var store = me.getStore();
+	let me = this;
+	let store = me.getStore();
 
 	me.value = value || '';
 
@@ -76,12 +76,12 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
 	    rec.set('state', '=');
 	});
 
-	var flags = value ? value.split(';') : [];
+	let flags = value ? value.split(';') : [];
 	flags.forEach(function(flag) {
-	    var sign = flag.substr(0, 1);
+	    let sign = flag.substr(0, 1);
 	    flag = flag.substr(1);
 
-	    var rec = store.findRecord('flag', flag, 0, false, true, true);
+	    let rec = store.findRecord('flag', flag, 0, false, true, true);
 	    if (rec !== null) {
 		rec.set('state', sign);
 	    } else {
@@ -90,7 +90,7 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
 	});
 	store.reload();
 
-	var res = me.mixins.field.setValue.call(me, value);
+	let res = me.mixins.field.setValue.call(me, value);
 
 	return res;
     },
@@ -112,7 +112,7 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
 	    dataIndex: 'state',
 	    width: 95,
 	    onWidgetAttach: function(column, widget, record) {
-		var val = record.get('state') || '=';
+		let val = record.get('state') || '=';
 		widget.down('[inputValue=' + val + ']').setValue(true);
 		// TODO: disable if selected CPU model and flag are incompatible
 	    },
@@ -124,10 +124,10 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
 		value: '=',
 		listeners: {
 		    change: function(f, value) {
-			var v = Object.values(value)[0];
+			let v = Object.values(value)[0];
 			f.getWidgetRecord().set('state', v);
 
-			var view = this.up('grid');
+			let view = this.up('grid');
 			view.dirty = view.getValue() !== view.originalValue;
 			view.checkDirty();
 			//view.checkChange();
@@ -165,7 +165,7 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
     ],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	// static class store, thus gets not recreated, so ensure defaults are set!
 	me.getStore().data.forEach(function(v) {
diff --git a/www/manager6/form/VMSelector.js b/www/manager6/form/VMSelector.js
index 78cd9013..e003f94e 100644
--- a/www/manager6/form/VMSelector.js
+++ b/www/manager6/form/VMSelector.js
@@ -112,11 +112,11 @@ Ext.define('PVE.form.VMSelector', {
     },
 
     getValue: function() {
-	var me = this;
-	var sm = me.getSelectionModel();
-	var selection = sm.getSelection();
-	var values = [];
-	var store = me.getStore();
+	let me = this;
+	let sm = me.getSelectionModel();
+	let selection = sm.getSelection();
+	let values = [];
+	let store = me.getStore();
 	selection.forEach(function(item) {
 	    // only add if not filtered
 	    if (store.findExact('vmid', item.data.vmid) !== -1) {
@@ -167,7 +167,7 @@ Ext.define('PVE.form.VMSelector', {
 
 	// only show the relevant guests by default
 	if (me.action) {
-	    var statusfilter = '';
+	    let statusfilter = '';
 	    switch (me.action) {
 		case 'startall':
 		    statusfilter = 'stopped';
diff --git a/www/manager6/grid/BackupView.js b/www/manager6/grid/BackupView.js
index 7f7e1b62..801727bb 100644
--- a/www/manager6/grid/BackupView.js
+++ b/www/manager6/grid/BackupView.js
@@ -9,24 +9,24 @@ Ext.define('PVE.grid.BackupView', {
     stateId: 'grid-guest-backup',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = me.pveSelNode.data.vmid;
+	let vmid = me.pveSelNode.data.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
 
-	var vmtype = me.pveSelNode.data.type;
+	let vmtype = me.pveSelNode.data.type;
 	if (!vmtype) {
 	    throw "no VM type specified";
 	}
 
-	var vmtypeFilter;
+	let vmtypeFilter;
 	if (vmtype === 'lxc' || vmtype === 'openvz') {
 	    vmtypeFilter = function(item) {
 		return PVE.Utils.volume_is_lxc_backup(item.data.volid, item.data.format);
@@ -39,14 +39,14 @@ Ext.define('PVE.grid.BackupView', {
 	    throw "unsupported VM type '" + vmtype + "'";
 	}
 
-	var searchFilter = {
+	let searchFilter = {
 	    property: 'volid',
 	    value: '',
 	    anyMatch: true,
 	    caseSensitive: false,
 	};
 
-	var vmidFilter = {
+	let vmidFilter = {
 	    property: 'vmid',
 	    value: vmid,
 	    exactMatch: true,
@@ -79,15 +79,15 @@ Ext.define('PVE.grid.BackupView', {
 	    ]);
 	};
 
-	var reload = Ext.Function.createBuffered(function() {
+	let reload = Ext.Function.createBuffered(function() {
 	    if (me.store) {
 		me.store.load();
 	    }
 	}, 100);
 
 	let isPBS = false;
-	var setStorage = function(storage) {
-	    var url = '/api2/json/nodes/' + nodename + '/storage/' + storage + '/content';
+	let setStorage = function(storage) {
+	    let url = '/api2/json/nodes/' + nodename + '/storage/' + storage + '/content';
 	    url += '?content=backup';
 
 	    me.store.setProxy({
@@ -102,7 +102,7 @@ Ext.define('PVE.grid.BackupView', {
 
 	let file_restore_btn;
 
-	var storagesel = Ext.create('PVE.form.StorageSelector', {
+	let storagesel = Ext.create('PVE.form.StorageSelector', {
 	    nodename: nodename,
 	    fieldLabel: gettext('Storage'),
 	    labelAlign: 'right',
@@ -130,7 +130,7 @@ Ext.define('PVE.grid.BackupView', {
 	    },
 	});
 
-	var storagefilter = Ext.create('Ext.form.field.Text', {
+	let storagefilter = Ext.create('Ext.form.field.Text', {
 	    fieldLabel: gettext('Search'),
 	    labelWidth: 50,
 	    labelAlign: 'right',
@@ -146,7 +146,7 @@ Ext.define('PVE.grid.BackupView', {
 	    },
 	});
 
-	var vmidfilterCB = Ext.create('Ext.form.field.Checkbox', {
+	let vmidfilterCB = Ext.create('Ext.form.field.Checkbox', {
 	    boxLabel: gettext('Filter VMID'),
 	    value: '1',
 	    listeners: {
@@ -158,12 +158,12 @@ Ext.define('PVE.grid.BackupView', {
 	    },
 	});
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var backup_btn = Ext.create('Ext.button.Button', {
+	let backup_btn = Ext.create('Ext.button.Button', {
 	    text: gettext('Backup now'),
 	    handler: function() {
-		var win = Ext.create('PVE.window.Backup', {
+		let win = Ext.create('PVE.window.Backup', {
 		    nodename: nodename,
 		    vmid: vmid,
 		    vmtype: vmtype,
@@ -178,7 +178,7 @@ Ext.define('PVE.grid.BackupView', {
 	    },
 	});
 
-	var restore_btn = Ext.create('Proxmox.button.Button', {
+	let restore_btn = Ext.create('Proxmox.button.Button', {
 	    text: gettext('Restore'),
 	    disabled: true,
 	    selModel: sm,
@@ -270,7 +270,7 @@ Ext.define('PVE.grid.BackupView', {
 			disabled: true,
 			handler: function() {
 			    let volid = sm.getSelection()[0].data.volid;
-			    var storage = storagesel.getValue();
+			    let storage = storagesel.getValue();
 			    Ext.create('Proxmox.window.Edit', {
 				autoLoad: true,
 				width: 600,
diff --git a/www/manager6/grid/FirewallAliases.js b/www/manager6/grid/FirewallAliases.js
index 00d0d74b..055f9431 100644
--- a/www/manager6/grid/FirewallAliases.js
+++ b/www/manager6/grid/FirewallAliases.js
@@ -108,7 +108,7 @@ Ext.define('PVE.FirewallAliases', {
 	    let oldrec = sm.getSelection()[0];
 	    store.load(function(records, operation, success) {
 		if (oldrec) {
-		    var rec = store.findRecord('name', oldrec.data.name, 0, false, true, true);
+		    let rec = store.findRecord('name', oldrec.data.name, 0, false, true, true);
 		    if (rec) {
 			sm.select(rec);
 		    }
@@ -139,7 +139,7 @@ Ext.define('PVE.FirewallAliases', {
 	me.addBtn = Ext.create('Ext.Button', {
 	    text: gettext('Add'),
 	    handler: function() {
-		var win = Ext.create('PVE.FirewallAliasEdit', {
+		let win = Ext.create('PVE.FirewallAliasEdit', {
 		    base_url: me.base_url,
 		});
 		win.on('destroy', reload);
diff --git a/www/manager6/grid/FirewallOptions.js b/www/manager6/grid/FirewallOptions.js
index 4123bd9f..e0c4a499 100644
--- a/www/manager6/grid/FirewallOptions.js
+++ b/www/manager6/grid/FirewallOptions.js
@@ -7,7 +7,7 @@ Ext.define('PVE.FirewallOptions', {
     base_url: undefined,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.base_url) {
 	    throw "missing base_url configuration";
@@ -23,10 +23,10 @@ Ext.define('PVE.FirewallOptions', {
 
 	me.rows = {};
 
-	var add_boolean_row = function(name, text, defaultValue) {
+	let add_boolean_row = function(name, text, defaultValue) {
 	    me.add_boolean_row(name, text, { defaultValue: defaultValue });
 	};
-	var add_integer_row = function(name, text, minValue, labelWidth) {
+	let add_integer_row = function(name, text, minValue, labelWidth) {
 	    me.add_integer_row(name, text, {
 		minValue: minValue,
 		deleteEmpty: true,
@@ -41,7 +41,7 @@ Ext.define('PVE.FirewallOptions', {
 	    });
 	};
 
-	var add_log_row = function(name, labelWidth) {
+	let add_log_row = function(name, labelWidth) {
 	    me.rows[name] = {
 		header: name,
 		required: true,
@@ -146,21 +146,21 @@ Ext.define('PVE.FirewallOptions', {
 	    };
 	}
 
-	var edit_btn = new Ext.Button({
+	let edit_btn = new Ext.Button({
 	    text: gettext('Edit'),
 	    disabled: true,
 	    handler: function() { me.run_editor(); },
 	});
 
-	var set_button_status = function() {
-	    var sm = me.getSelectionModel();
-	    var rec = sm.getSelection()[0];
+	let set_button_status = function() {
+	    let sm = me.getSelectionModel();
+	    let rec = sm.getSelection()[0];
 
 	    if (!rec) {
 		edit_btn.disable();
 		return;
 	    }
-	    var rowdef = me.rows[rec.data.key];
+	    let rowdef = me.rows[rec.data.key];
 	    edit_btn.setDisabled(!rowdef.editor);
 	};
 
diff --git a/www/manager6/grid/FirewallRules.js b/www/manager6/grid/FirewallRules.js
index 5777c7f4..9f828cf4 100644
--- a/www/manager6/grid/FirewallRules.js
+++ b/www/manager6/grid/FirewallRules.js
@@ -22,9 +22,9 @@ Ext.define('PVE.form.FWMacroSelector', {
 	],
     },
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    autoLoad: true,
 	    fields: ['macro', 'descr'],
 	    idProperty: 'macro',
@@ -155,7 +155,7 @@ Ext.define('PVE.FirewallRulePanel', {
     list_refs_url: undefined,
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	// hack: editable ComboGrid returns nothing when empty, so we need to set ''
 	// Also, disabled text fields return nothing, so we need to set ''
@@ -172,7 +172,7 @@ Ext.define('PVE.FirewallRulePanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.list_refs_url) {
 	    throw "no list_refs_url specified";
@@ -390,7 +390,7 @@ Ext.define('PVE.FirewallRuleEdit', {
     allow_iface: false,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.base_url) {
 	    throw "no base_url specified";
@@ -409,7 +409,7 @@ Ext.define('PVE.FirewallRuleEdit', {
             me.method = 'PUT';
         }
 
-	var ipanel = Ext.create('PVE.FirewallRulePanel', {
+	let ipanel = Ext.create('PVE.FirewallRulePanel', {
 	    isCreate: me.isCreate,
 	    list_refs_url: me.list_refs_url,
 	    allow_iface: me.allow_iface,
@@ -427,17 +427,17 @@ Ext.define('PVE.FirewallRuleEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
+		    let values = response.result.data;
 		    ipanel.setValues(values);
 		    // set icmp-type again after protocol has been set
 		    if (values["icmp-type"] !== undefined) {
 			ipanel.setValues({ "icmp-type": values["icmp-type"] });
 		    }
 		    if (values.errors) {
-			var field = me.query('[isFormField][name=modified_marker]')[0];
+			let field = me.query('[isFormField][name=modified_marker]')[0];
 			field.setValue(1);
 			Ext.Function.defer(function() {
-			    var form = ipanel.up('form').getForm();
+			    let form = ipanel.up('form').getForm();
 			    form.markInvalid(values.errors);
 			}, 100);
 		    }
@@ -457,7 +457,7 @@ Ext.define('PVE.FirewallGroupRuleEdit', {
     allow_iface: false,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = me.rule_pos === undefined;
 
@@ -469,7 +469,7 @@ Ext.define('PVE.FirewallGroupRuleEdit', {
             me.method = 'PUT';
         }
 
-	var column1 = [
+	let column1 = [
 	    {
 		xtype: 'hiddenfield',
 		name: 'type',
@@ -494,7 +494,7 @@ Ext.define('PVE.FirewallGroupRuleEdit', {
 	    });
 	}
 
-	var ipanel = Ext.create('Proxmox.panel.InputPanel', {
+	let ipanel = Ext.create('Proxmox.panel.InputPanel', {
 	    isCreate: me.isCreate,
 	    column1: column1,
 	    column2: [
@@ -527,7 +527,7 @@ Ext.define('PVE.FirewallGroupRuleEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
+		    let values = response.result.data;
 		    ipanel.setValues(values);
 		},
 	    });
@@ -558,7 +558,7 @@ Ext.define('PVE.FirewallRules', {
     allow_iface: false,
 
     setBaseUrl: function(url) {
-        var me = this;
+        let me = this;
 
 	me.base_url = url;
 
@@ -584,7 +584,7 @@ Ext.define('PVE.FirewallRules', {
     },
 
     moveRule: function(from, to) {
-        var me = this;
+        let me = this;
 
 	if (!me.base_url) {
 	    return;
@@ -605,7 +605,7 @@ Ext.define('PVE.FirewallRules', {
     },
 
     updateRule: function(rule) {
-        var me = this;
+        let me = this;
 
 	if (!me.base_url) {
 	    return;
@@ -613,7 +613,7 @@ Ext.define('PVE.FirewallRules', {
 
 	rule.enable = rule.enable ? 1 : 0;
 
-	var pos = rule.pos;
+	let pos = rule.pos;
 	delete rule.pos;
 	delete rule.errors;
 
@@ -633,30 +633,30 @@ Ext.define('PVE.FirewallRules', {
 
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	if (!me.list_refs_url) {
 	    throw "no list_refs_url specified";
 	}
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    model: 'pve-fw-rule',
 	});
 
-	var reload = function() {
+	let reload = function() {
 	    store.load();
 	};
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var run_editor = function() {
-	    var rec = sm.getSelection()[0];
+	let run_editor = function() {
+	    let rec = sm.getSelection()[0];
 	    if (!rec) {
 		return;
 	    }
-	    var type = rec.data.type;
+	    let type = rec.data.type;
 
-	    var editor;
+	    let editor;
 	    if (type === 'in' || type === 'out') {
 		editor = 'PVE.FirewallRuleEdit';
 	    } else if (type === 'group') {
@@ -665,7 +665,7 @@ Ext.define('PVE.FirewallRules', {
 		return;
 	    }
 
-	    var win = Ext.create(editor, {
+	    let win = Ext.create(editor, {
 		digest: rec.data.digest,
 		allow_iface: me.allow_iface,
 		base_url: me.base_url,
@@ -688,7 +688,7 @@ Ext.define('PVE.FirewallRules', {
 	    text: gettext('Add'),
 	    disabled: true,
 	    handler: function() {
-		var win = Ext.create('PVE.FirewallRuleEdit', {
+		let win = Ext.create('PVE.FirewallRuleEdit', {
 		    allow_iface: me.allow_iface,
 		    base_url: me.base_url,
 		    list_refs_url: me.list_refs_url,
@@ -698,7 +698,7 @@ Ext.define('PVE.FirewallRules', {
 	    },
 	});
 
-	var run_copy_editor = function() {
+	let run_copy_editor = function() {
 	    let rec = sm.getSelection()[0];
 	    if (!rec) {
 		return;
@@ -732,7 +732,7 @@ Ext.define('PVE.FirewallRules', {
 		    gettext('Security Group'),
 		disabled: true,
 		handler: function() {
-		    var win = Ext.create('PVE.FirewallGroupRuleEdit', {
+		    let win = Ext.create('PVE.FirewallGroupRuleEdit', {
 			allow_iface: me.allow_iface,
 			base_url: me.base_url,
 		    });
@@ -747,7 +747,7 @@ Ext.define('PVE.FirewallRules', {
 	    baseurl: me.base_url + '/',
 	    confirmMsg: false,
 	    getRecordName: function(rec) {
-		var rule = rec.data;
+		let rule = rec.data;
 		return rule.pos.toString() +
 		    '?digest=' + encodeURIComponent(rule.digest);
 	    },
@@ -799,9 +799,9 @@ Ext.define('PVE.FirewallRules', {
 		dataIndex: 'enable',
 		listeners: {
 		    checkchange: function(column, recordIndex, checked) {
-			var record = me.getStore().getData().items[recordIndex];
+			let record = me.getStore().getData().items[recordIndex];
 			record.commit();
-			var data = {};
+			let data = {};
 			Ext.Array.forEach(record.getFields(), function(field) {
 			    data[field.name] = record.get(field.name);
 			});
diff --git a/www/manager6/grid/PoolMembers.js b/www/manager6/grid/PoolMembers.js
index 025288cc..f17e931a 100644
--- a/www/manager6/grid/PoolMembers.js
+++ b/www/manager6/grid/PoolMembers.js
@@ -5,7 +5,7 @@ Ext.define('PVE.pool.AddVM', {
     isAdd: true,
     isCreate: true,
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.pool) {
 	    throw "no pool specified";
@@ -14,13 +14,13 @@ Ext.define('PVE.pool.AddVM', {
 	me.url = "/pools/" + me.pool;
 	me.method = 'PUT';
 
-	var vmsField = Ext.create('Ext.form.field.Text', {
+	let vmsField = Ext.create('Ext.form.field.Text', {
 	    name: 'vms',
 	    hidden: true,
 	    allowBlank: false,
 	});
 
-	var vmStore = Ext.create('Ext.data.Store', {
+	let vmStore = Ext.create('Ext.data.Store', {
 	    model: 'PVEResources',
 	    sorters: [
 		{
@@ -35,7 +35,7 @@ Ext.define('PVE.pool.AddVM', {
 	    ],
 	});
 
-	var vmGrid = Ext.create('widget.grid', {
+	let vmGrid = Ext.create('widget.grid', {
 	    store: vmStore,
 	    border: true,
 	    height: 300,
@@ -45,7 +45,7 @@ Ext.define('PVE.pool.AddVM', {
 		mode: 'SIMPLE',
 		listeners: {
 		    selectionchange: function(model, selected, opts) {
-			var selectedVms = [];
+			let selectedVms = [];
 			selected.forEach(function(vm) {
 			    selectedVms.push(vm.data.vmid);
 			});
@@ -99,7 +99,7 @@ Ext.define('PVE.pool.AddStorage', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.pool) {
 	    throw "no pool specified";
@@ -139,13 +139,13 @@ Ext.define('PVE.grid.PoolMembers', {
     stateId: 'grid-pool-members',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.pool) {
 	    throw "no pool specified";
 	}
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    model: 'PVEResources',
 	    sorters: [
 		{
@@ -160,15 +160,15 @@ Ext.define('PVE.grid.PoolMembers', {
 	    },
 	});
 
-	var coldef = PVE.data.ResourceStore.defaultColumns();
+	let coldef = PVE.data.ResourceStore.defaultColumns();
 
-	var reload = function() {
+	let reload = function() {
 	    store.load();
 	};
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var remove_btn = new Proxmox.button.Button({
+	let remove_btn = new Proxmox.button.Button({
 	    text: gettext('Remove'),
 	    disabled: true,
 	    selModel: sm,
@@ -177,7 +177,7 @@ Ext.define('PVE.grid.PoolMembers', {
 					 "'" + rec.data.id + "'");
 	    },
 	    handler: function(btn, event, rec) {
-		var params = { 'delete': 1 };
+		let params = { 'delete': 1 };
 		if (rec.data.type === 'storage') {
 		    params.storage = rec.data.storage;
 		} else if (rec.data.type === 'qemu' || rec.data.type === 'lxc' || rec.data.type === 'openvz') {
@@ -213,7 +213,7 @@ Ext.define('PVE.grid.PoolMembers', {
 				text: gettext('Virtual Machine'),
 				iconCls: 'pve-itype-icon-qemu',
 				handler: function() {
-				    var win = Ext.create('PVE.pool.AddVM', { pool: me.pool });
+				    let win = Ext.create('PVE.pool.AddVM', { pool: me.pool });
 				    win.on('destroy', reload);
 				    win.show();
 				},
@@ -222,7 +222,7 @@ Ext.define('PVE.grid.PoolMembers', {
 				text: gettext('Storage'),
 				iconCls: 'pve-itype-icon-storage',
 				handler: function() {
-				    var win = Ext.create('PVE.pool.AddStorage', { pool: me.pool });
+				    let win = Ext.create('PVE.pool.AddStorage', { pool: me.pool });
 				    win.on('destroy', reload);
 				    win.show();
 				},
@@ -239,7 +239,7 @@ Ext.define('PVE.grid.PoolMembers', {
 	    listeners: {
 		itemcontextmenu: PVE.Utils.createCmdMenu,
 		itemdblclick: function(v, record) {
-		    var ws = me.up('pveStdWorkspace');
+		    let ws = me.up('pveStdWorkspace');
 		    ws.selectById(record.data.id);
 		},
 		activate: reload,
diff --git a/www/manager6/grid/Replication.js b/www/manager6/grid/Replication.js
index b17288b9..3baa1b4f 100644
--- a/www/manager6/grid/Replication.js
+++ b/www/manager6/grid/Replication.js
@@ -9,12 +9,12 @@ Ext.define('PVE.window.ReplicaEdit', {
     method: 'POST',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var vmid = me.pveSelNode.data.vmid;
-	var nodename = me.pveSelNode.data.node;
+	let vmid = me.pveSelNode.data.vmid;
+	let nodename = me.pveSelNode.data.node;
 
-	var items = [];
+	let items = [];
 
 	items.push({
 	    xtype: me.isCreate && !vmid?'pveGuestIDSelector':'displayfield',
@@ -99,10 +99,10 @@ Ext.define('PVE.window.ReplicaEdit', {
 	if (me.isCreate) {
 	    me.load({
 		success: function(response) {
-		    var jobs = response.result.data;
-		    var highestids = {};
+		    let jobs = response.result.data;
+		    let highestids = {};
 		    Ext.Array.forEach(jobs, function(job) {
-			var match = /^([0-9]+)-([0-9]+)$/.exec(job.id);
+			let match = /^([0-9]+)-([0-9]+)$/.exec(job.id);
 			if (match) {
 			    let jobVMID = parseInt(match[1], 10);
 			    let id = parseInt(match[2], 10);
@@ -270,9 +270,9 @@ Ext.define('PVE.grid.ReplicaView', {
     ],
 
     initComponent: function() {
-	var me = this;
-	var mode = '';
-	var url = '/cluster/replication';
+	let me = this;
+	let mode = '';
+	let url = '/cluster/replication';
 
 	me.nodename = me.pveSelNode.data.node;
 	me.vmid = me.pveSelNode.data.vmid;
diff --git a/www/manager6/grid/ResourceGrid.js b/www/manager6/grid/ResourceGrid.js
index 29906a37..f23c8500 100644
--- a/www/manager6/grid/ResourceGrid.js
+++ b/www/manager6/grid/ResourceGrid.js
@@ -32,7 +32,7 @@ Ext.define('PVE.grid.ResourceGrid', {
 	};
 
 	let updateGrid = function() {
-	    var filterfn = me.viewFilter ? me.viewFilter.filterfn : null;
+	    let filterfn = me.viewFilter ? me.viewFilter.filterfn : null;
 
 	    store.suspendEvents();
 
@@ -122,7 +122,7 @@ Ext.define('PVE.grid.ResourceGrid', {
 	    listeners: {
 		itemcontextmenu: PVE.Utils.createCmdMenu,
 		itemdblclick: function(v, record) {
-		    var ws = me.up('pveStdWorkspace');
+		    let ws = me.up('pveStdWorkspace');
 		    ws.selectById(record.data.id);
 		},
 		afterrender: function() {
diff --git a/www/manager6/ha/Fencing.js b/www/manager6/ha/Fencing.js
index c87a761c..c5a7b7d9 100644
--- a/www/manager6/ha/Fencing.js
+++ b/www/manager6/ha/Fencing.js
@@ -5,9 +5,9 @@ Ext.define('PVE.ha.FencingView', {
     onlineHelp: 'ha_manager_fencing',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-ha-fencing',
 	    data: [],
 	});
diff --git a/www/manager6/ha/GroupEdit.js b/www/manager6/ha/GroupEdit.js
index 2c42de6b..27b52ffc 100644
--- a/www/manager6/ha/GroupEdit.js
+++ b/www/manager6/ha/GroupEdit.js
@@ -5,7 +5,7 @@ Ext.define('PVE.ha.GroupInputPanel', {
     groupId: undefined,
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = 'group';
@@ -15,7 +15,7 @@ Ext.define('PVE.ha.GroupInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	let update_nodefield, update_node_selection;
 
@@ -43,7 +43,7 @@ Ext.define('PVE.ha.GroupInputPanel', {
 	    ],
 	});
 
-	var nodegrid = Ext.createWidget('grid', {
+	let nodegrid = Ext.createWidget('grid', {
 	    store: store,
 	    border: true,
 	    height: 300,
@@ -180,7 +180,7 @@ Ext.define('PVE.ha.GroupEdit', {
     groupId: undefined,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = !me.groupId;
 
@@ -192,7 +192,7 @@ Ext.define('PVE.ha.GroupEdit', {
             me.method = 'PUT';
         }
 
-	var ipanel = Ext.create('PVE.ha.GroupInputPanel', {
+	let ipanel = Ext.create('PVE.ha.GroupInputPanel', {
 	    isCreate: me.isCreate,
 	    groupId: me.groupId,
 	});
@@ -207,7 +207,7 @@ Ext.define('PVE.ha.GroupEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
+		    let values = response.result.data;
 
 		    ipanel.setValues(values);
 		},
diff --git a/www/manager6/ha/GroupSelector.js b/www/manager6/ha/GroupSelector.js
index 61ab0c03..00975458 100644
--- a/www/manager6/ha/GroupSelector.js
+++ b/www/manager6/ha/GroupSelector.js
@@ -37,7 +37,7 @@ Ext.define('PVE.ha.GroupSelector', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 	me.callParent();
 	me.getStore().load();
     },
diff --git a/www/manager6/ha/Groups.js b/www/manager6/ha/Groups.js
index da5f4479..98dc3ae4 100644
--- a/www/manager6/ha/Groups.js
+++ b/www/manager6/ha/Groups.js
@@ -8,11 +8,11 @@ Ext.define('PVE.ha.GroupsView', {
     stateId: 'grid-ha-groups',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-ha-groups',
 	    sorters: {
 		property: 'group',
@@ -20,11 +20,11 @@ Ext.define('PVE.ha.GroupsView', {
 	    },
 	});
 
-	var reload = function() {
+	let reload = function() {
 	    store.load();
 	};
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
 	let run_editor = function() {
 	    let rec = sm.getSelection()[0];
diff --git a/www/manager6/ha/ResourceEdit.js b/www/manager6/ha/ResourceEdit.js
index f4c876ea..8e5e0a6d 100644
--- a/www/manager6/ha/ResourceEdit.js
+++ b/www/manager6/ha/ResourceEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.ha.VMResourceInputPanel', {
     vmid: undefined,
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (values.vmid) {
 	    values.sid = values.vmid;
@@ -19,10 +19,10 @@ Ext.define('PVE.ha.VMResourceInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
-	var MIN_QUORUM_VOTES = 3;
+	let me = this;
+	let MIN_QUORUM_VOTES = 3;
 
-	var disabledHint = Ext.createWidget({
+	let disabledHint = Ext.createWidget({
 	    xtype: 'displayfield', // won't get submitted by default
 	    userCls: 'pmx-hint',
 	    value: 'Disabling the resource will stop the guest system. ' +
@@ -30,7 +30,7 @@ Ext.define('PVE.ha.VMResourceInputPanel', {
 	    hidden: true,
 	});
 
-	var fewVotesHint = Ext.createWidget({
+	let fewVotesHint = Ext.createWidget({
 	    itemId: 'fewVotesHint',
 	    xtype: 'displayfield',
 	    userCls: 'pmx-hint',
@@ -45,10 +45,10 @@ Ext.define('PVE.ha.VMResourceInputPanel', {
 		Ext.Msg.alert(gettext('Error'), response.htmlStatus);
 	    },
 	    success: function(response) {
-		var nodes = response.result.data;
-		var votes = 0;
+		let nodes = response.result.data;
+		let votes = 0;
 		Ext.Array.forEach(nodes, function(node) {
-		    var vote = parseInt(node.quorum_votes, 10); // parse as base 10
+		    let vote = parseInt(node.quorum_votes, 10); // parse as base 10
 		    votes += vote || 0; // parseInt might return NaN, which is false
 		});
 
@@ -58,7 +58,7 @@ Ext.define('PVE.ha.VMResourceInputPanel', {
 	    },
 	});
 
-	var vmidStore = me.vmid ? {} : {
+	let vmidStore = me.vmid ? {} : {
 	    model: 'PVEResources',
 	    autoLoad: true,
 	    sorters: 'vmid',
@@ -156,7 +156,7 @@ Ext.define('PVE.ha.VMResourceEdit', {
     isCreate: undefined,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate === undefined) {
 	    me.isCreate = !me.vmid;
@@ -170,7 +170,7 @@ Ext.define('PVE.ha.VMResourceEdit', {
             me.method = 'PUT';
         }
 
-	var ipanel = Ext.create('PVE.ha.VMResourceInputPanel', {
+	let ipanel = Ext.create('PVE.ha.VMResourceInputPanel', {
 	    isCreate: me.isCreate,
 	    vmid: me.vmid,
 	    guestType: me.guestType,
@@ -188,10 +188,10 @@ Ext.define('PVE.ha.VMResourceEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
+		    let values = response.result.data;
 
-		    var regex = /^(\S+):(\S+)$/;
-		    var res = regex.exec(values.sid);
+		    let regex = /^(\S+):(\S+)$/;
+		    let res = regex.exec(values.sid);
 
 		    if (res[1] !== 'vm' && res[1] !== 'ct') {
 			throw "got unexpected resource type";
diff --git a/www/manager6/ha/Status.js b/www/manager6/ha/Status.js
index 8870faf4..c1348482 100644
--- a/www/manager6/ha/Status.js
+++ b/www/manager6/ha/Status.js
@@ -9,7 +9,7 @@ Ext.define('PVE.ha.Status', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.rstore = Ext.create('Proxmox.data.ObjectStore', {
 	    interval: me.interval,
diff --git a/www/manager6/ha/StatusView.js b/www/manager6/ha/StatusView.js
index 1ccc670f..f6e61359 100644
--- a/www/manager6/ha/StatusView.js
+++ b/www/manager6/ha/StatusView.js
@@ -12,7 +12,7 @@ Ext.define('PVE.ha.StatusView', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.rstore) {
 	    throw "no rstore given";
@@ -20,13 +20,13 @@ Ext.define('PVE.ha.StatusView', {
 
 	Proxmox.Utils.monStoreErrors(me, me.rstore);
 
-	var store = Ext.create('Proxmox.data.DiffStore', {
+	let store = Ext.create('Proxmox.data.DiffStore', {
 	    rstore: me.rstore,
 	    sortAfterUpdate: true,
 	    sorters: [{
 		sorterFn: function(rec1, rec2) {
-		    var p1 = me.sortPriority[rec1.data.type];
-		    var p2 = me.sortPriority[rec2.data.type];
+		    let p1 = me.sortPriority[rec1.data.type];
+		    let p2 = me.sortPriority[rec2.data.type];
 		    return p1 !== p2 ? p1 > p2 ? 1 : -1 : 0;
 		},
 	    }],
diff --git a/www/manager6/lxc/Config.js b/www/manager6/lxc/Config.js
index 89b59c9b..6b0571ce 100644
--- a/www/manager6/lxc/Config.js
+++ b/www/manager6/lxc/Config.js
@@ -5,33 +5,33 @@ Ext.define('PVE.lxc.Config', {
     onlineHelp: 'chapter_pct',
 
     initComponent: function() {
-        var me = this;
-	var vm = me.pveSelNode.data;
+	let me = this;
+	let vm = me.pveSelNode.data;
 
-	var nodename = vm.node;
+	let nodename = vm.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = vm.vmid;
+	let vmid = vm.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
 
-	var template = !!vm.template;
+	let template = !!vm.template;
 
-	var running = !!vm.uptime;
+	let running = !!vm.uptime;
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
-	var base_url = '/nodes/' + nodename + '/lxc/' + vmid;
+	let base_url = '/nodes/' + nodename + '/lxc/' + vmid;
 
 	me.statusStore = Ext.create('Proxmox.data.ObjectStore', {
 	    url: '/api2/json' + base_url + '/status/current',
 	    interval: 1000,
 	});
 
-	var vm_command = function(cmd, params) {
+	let vm_command = function(cmd, params) {
 	    Proxmox.Utils.API2Request({
 		params: params,
 		url: base_url + "/status/" + cmd,
@@ -43,7 +43,7 @@ Ext.define('PVE.lxc.Config', {
 	    });
 	};
 
-	var startBtn = Ext.create('Ext.Button', {
+	let startBtn = Ext.create('Ext.Button', {
 	    text: gettext('Start'),
 	    disabled: !caps.vms['VM.PowerMgmt'] || running,
 	    hidden: template,
@@ -53,7 +53,7 @@ Ext.define('PVE.lxc.Config', {
 	    iconCls: 'fa fa-play',
 	});
 
-	var shutdownBtn = Ext.create('PVE.button.Split', {
+	let shutdownBtn = Ext.create('PVE.button.Split', {
 	    text: gettext('Shutdown'),
 	    disabled: !caps.vms['VM.PowerMgmt'] || !running,
 	    hidden: template,
@@ -87,12 +87,12 @@ Ext.define('PVE.lxc.Config', {
 	    iconCls: 'fa fa-power-off',
 	});
 
-	var migrateBtn = Ext.create('Ext.Button', {
+	let migrateBtn = Ext.create('Ext.Button', {
 	    text: gettext('Migrate'),
 	    disabled: !caps.vms['VM.Migrate'],
 	    hidden: PVE.data.ResourceStore.getNodes().length < 2,
 	    handler: function() {
-		var win = Ext.create('PVE.window.Migrate', {
+		let win = Ext.create('PVE.window.Migrate', {
 		    vmtype: 'lxc',
 		    nodename: nodename,
 		    vmid: vmid,
@@ -102,7 +102,7 @@ Ext.define('PVE.lxc.Config', {
 	    iconCls: 'fa fa-send-o',
 	});
 
-	var moreBtn = Ext.create('Proxmox.button.Button', {
+	let moreBtn = Ext.create('Proxmox.button.Button', {
 	    text: gettext('More'),
 	    menu: {
  items: [
@@ -137,7 +137,7 @@ Ext.define('PVE.lxc.Config', {
 		    hidden: !caps.nodes['Sys.Console'],
 		    text: gettext('Manage HA'),
 		    handler: function() {
-			var ha = vm.hastate;
+			let ha = vm.hastate;
 			Ext.create('PVE.ha.VMResourceEdit', {
 			    vmid: vmid,
 			    guestType: 'ct',
@@ -162,7 +162,7 @@ Ext.define('PVE.lxc.Config', {
 },
 	});
 
-	var consoleBtn = Ext.create('PVE.button.ConsoleButton', {
+	let consoleBtn = Ext.create('PVE.button.ConsoleButton', {
 	    disabled: !caps.vms['VM.Console'],
 	    consoleType: 'lxc',
 	    consoleName: vm.name,
@@ -171,7 +171,7 @@ Ext.define('PVE.lxc.Config', {
 	    vmid: vmid,
 	});
 
-	var statusTxt = Ext.create('Ext.toolbar.TextItem', {
+	let statusTxt = Ext.create('Ext.toolbar.TextItem', {
 	    data: {
 		lock: undefined,
 	    },
@@ -340,14 +340,14 @@ Ext.define('PVE.lxc.Config', {
 
 	me.callParent();
 
-	var prevStatus = 'unknown';
+	let prevStatus = 'unknown';
 	me.mon(me.statusStore, 'load', function(s, records, success) {
-	    var status;
-	    var lock;
+	    let status;
+	    let lock;
 	    if (!success) {
 		status = 'unknown';
 	    } else {
-		var rec = s.data.get('status');
+		let rec = s.data.get('status');
 		status = rec ? rec.data.value : 'unknown';
 		rec = s.data.get('template');
 		template = rec ? rec.data.value : false;
diff --git a/www/manager6/lxc/CreateWizard.js b/www/manager6/lxc/CreateWizard.js
index 1f902c2c..b05586d6 100644
--- a/www/manager6/lxc/CreateWizard.js
+++ b/www/manager6/lxc/CreateWizard.js
@@ -104,7 +104,7 @@ Ext.define('PVE.lxc.CreateWizard', {
 		    allowBlank: true,
 		    submitValue: false,
 		    validator: function(value) {
-			var pw = this.up().down('field[name=password]').getValue();
+			let pw = this.up().down('field[name=password]').getValue();
 			if (pw !== value) {
 			    return "Passwords do not match!";
 			}
diff --git a/www/manager6/lxc/DNS.js b/www/manager6/lxc/DNS.js
index 6c519023..b04c3c3d 100644
--- a/www/manager6/lxc/DNS.js
+++ b/www/manager6/lxc/DNS.js
@@ -5,9 +5,9 @@ Ext.define('PVE.lxc.DNSInputPanel', {
     insideWizard: false,
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var deletes = [];
+	let deletes = [];
 	if (!values.searchdomain && !me.insideWizard) {
 	    deletes.push('searchdomain');
 	}
@@ -27,9 +27,9 @@ Ext.define('PVE.lxc.DNSInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var items = [
+	let items = [
 	    {
 		xtype: 'proxmoxtextfield',
 		name: 'searchdomain',
@@ -63,9 +63,9 @@ Ext.define('PVE.lxc.DNSEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var ipanel = Ext.create('PVE.lxc.DNSInputPanel');
+	let ipanel = Ext.create('PVE.lxc.DNSInputPanel');
 
 	Ext.apply(me, {
 	    subject: gettext('Resources'),
@@ -77,7 +77,7 @@ Ext.define('PVE.lxc.DNSEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
+		    let values = response.result.data;
 
 		    if (values.nameserver) {
 			values.nameserver.replace(/[,;]/, ' ');
@@ -98,21 +98,21 @@ Ext.define('PVE.lxc.DNS', {
     onlineHelp: 'pct_container_network',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = me.pveSelNode.data.vmid;
+	let vmid = me.pveSelNode.data.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
-	var rows = {
+	let rows = {
 	    hostname: {
 		required: true,
 		defaultValue: me.pveSelNode.data.name,
@@ -131,7 +131,7 @@ Ext.define('PVE.lxc.DNS', {
 			    emptyText: 'CT' + vmid.toString(),
 			},
 			onGetValues: function(values) {
-			    var params = values;
+			    let params = values;
 			    if (values.hostname === undefined ||
 				values.hostname === null ||
 				values.hostname === '') {
@@ -160,26 +160,26 @@ Ext.define('PVE.lxc.DNS', {
 	    },
 	};
 
-	var baseurl = 'nodes/' + nodename + '/lxc/' + vmid + '/config';
+	let baseurl = 'nodes/' + nodename + '/lxc/' + vmid + '/config';
 
-	var reload = function() {
+	let reload = function() {
 	    me.rstore.load();
 	};
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var run_editor = function() {
-	    var rec = sm.getSelection()[0];
+	let run_editor = function() {
+	    let rec = sm.getSelection()[0];
 	    if (!rec) {
 		return;
 	    }
 
-	    var rowdef = rows[rec.data.key];
+	    let rowdef = rows[rec.data.key];
 	    if (!rowdef.editor) {
 		return;
 	    }
 
-	    var win;
+	    let win;
 	    if (Ext.isString(rowdef.editor)) {
 		win = Ext.create(rowdef.editor, {
 		    pveSelNode: me.pveSelNode,
@@ -187,7 +187,7 @@ Ext.define('PVE.lxc.DNS', {
 		    url: '/api2/extjs/nodes/' + nodename + '/lxc/' + vmid + '/config',
 		});
 	    } else {
-		var config = Ext.apply({
+		let config = Ext.apply({
 		    pveSelNode: me.pveSelNode,
 		    confid: rec.data.key,
 		    url: '/api2/extjs/nodes/' + nodename + '/lxc/' + vmid + '/config',
@@ -200,20 +200,20 @@ Ext.define('PVE.lxc.DNS', {
 	    win.on('destroy', reload);
 	};
 
-	var edit_btn = new Proxmox.button.Button({
+	let edit_btn = new Proxmox.button.Button({
 	    text: gettext('Edit'),
 	    disabled: true,
 	    selModel: sm,
 	    enableFn: function(rec) {
-		var rowdef = rows[rec.data.key];
+		let rowdef = rows[rec.data.key];
 		return !!rowdef.editor;
 	    },
 	    handler: run_editor,
 	});
 
-	var revert_btn = new PVE.button.PendingRevert();
+	let revert_btn = new PVE.button.PendingRevert();
 
-	var set_button_status = function() {
+	let set_button_status = function() {
 	    let button_sm = me.getSelectionModel();
 	    let rec = button_sm.getSelection()[0];
 
diff --git a/www/manager6/lxc/FeaturesEdit.js b/www/manager6/lxc/FeaturesEdit.js
index bce6e5fb..9dbe069a 100644
--- a/www/manager6/lxc/FeaturesEdit.js
+++ b/www/manager6/lxc/FeaturesEdit.js
@@ -69,8 +69,8 @@ Ext.define('PVE.lxc.FeaturesInputPanel', {
     ],
 
     onGetValues: function(values) {
-	var me = this;
-	var mounts = me.mounts;
+	let me = this;
+	let mounts = me.mounts;
 	me.fstypes.forEach(function(fs) {
 	    if (values[fs]) {
 		mounts.push(fs);
@@ -82,7 +82,7 @@ Ext.define('PVE.lxc.FeaturesInputPanel', {
 	    values.mount = mounts.join(';');
 	}
 
-	var featuresstring = PVE.Parser.printPropertyString(values, undefined);
+	let featuresstring = PVE.Parser.printPropertyString(values, undefined);
 	if (featuresstring === '') {
 	    return { 'delete': 'features' };
 	}
@@ -90,12 +90,12 @@ Ext.define('PVE.lxc.FeaturesInputPanel', {
     },
 
     setValues: function(values) {
-	var me = this;
+	let me = this;
 
 	me.viewModel.set('unprivileged', values.unprivileged);
 
 	if (values.features) {
-	    var res = PVE.Parser.parsePropertyString(values.features);
+	    let res = PVE.Parser.parsePropertyString(values.features);
 	    me.mounts = [];
 	    if (res.mount) {
 		res.mount.split(/[; ]/).forEach(function(item) {
diff --git a/www/manager6/lxc/MPEdit.js b/www/manager6/lxc/MPEdit.js
index 609447ef..f43aab04 100644
--- a/www/manager6/lxc/MPEdit.js
+++ b/www/manager6/lxc/MPEdit.js
@@ -12,16 +12,16 @@ Ext.define('PVE.lxc.MountPointInputPanel', {
     vmconfig: {}, // used to select unused disks
 
     setUnprivileged: function(unprivileged) {
-	var me = this;
-	var vm = me.getViewModel();
+	let me = this;
+	let vm = me.getViewModel();
 	me.unprivileged = unprivileged;
 	vm.set('unpriv', unprivileged);
     },
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var confid = me.confid || "mp"+values.mpid;
+	let confid = me.confid || "mp"+values.mpid;
 	me.mp.file = me.down('field[name=file]').getValue();
 
 	if (me.unused) {
diff --git a/www/manager6/lxc/MPResize.js b/www/manager6/lxc/MPResize.js
index 881c037b..783d96fe 100644
--- a/www/manager6/lxc/MPResize.js
+++ b/www/manager6/lxc/MPResize.js
@@ -4,8 +4,8 @@ Ext.define('PVE.window.MPResize', {
     resizable: false,
 
     resize_disk: function(disk, size) {
-	var me = this;
-        var params = { disk: disk, size: '+' + size + 'G' };
+	let me = this;
+        let params = { disk: disk, size: '+' + size + 'G' };
 
 	Proxmox.Utils.API2Request({
 	    params: params,
@@ -16,8 +16,8 @@ Ext.define('PVE.window.MPResize', {
 		Ext.Msg.alert(gettext('Error'), response.htmlStatus);
 	    },
 	    success: function(response, opts) {
-		var upid = response.result.data;
-		var win = Ext.create('Proxmox.window.TaskViewer', { upid: upid });
+		let upid = response.result.data;
+		let win = Ext.create('Proxmox.window.TaskViewer', { upid: upid });
 		win.show();
 		me.close();
 	    },
@@ -25,7 +25,7 @@ Ext.define('PVE.window.MPResize', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
@@ -35,7 +35,7 @@ Ext.define('PVE.window.MPResize', {
 	    throw "no VM ID specified";
 	}
 
-	var items = [
+	let items = [
 	    {
 		xtype: 'displayfield',
 		name: 'disk',
@@ -68,16 +68,16 @@ Ext.define('PVE.window.MPResize', {
 	    items: items,
 	});
 
-	var form = me.formPanel.getForm();
+	let form = me.formPanel.getForm();
 
-	var submitBtn;
+	let submitBtn;
 
 	me.title = gettext('Resize disk');
 	submitBtn = Ext.create('Ext.Button', {
 	    text: gettext('Resize disk'),
 	    handler: function() {
 		if (form.isValid()) {
-		    var values = form.getValues();
+		    let values = form.getValues();
 		    me.resize_disk(me.disk, values.size);
 		}
 	    },
diff --git a/www/manager6/lxc/Options.js b/www/manager6/lxc/Options.js
index d0a53fc7..ab4ae5e6 100644
--- a/www/manager6/lxc/Options.js
+++ b/www/manager6/lxc/Options.js
@@ -5,21 +5,21 @@ Ext.define('PVE.lxc.Options', {
     onlineHelp: 'pct_options',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = me.pveSelNode.data.vmid;
+	let vmid = me.pveSelNode.data.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
-	var rows = {
+	let rows = {
 	    onboot: {
 		header: gettext('Start at boot'),
 		defaultValue: '',
@@ -143,24 +143,24 @@ Ext.define('PVE.lxc.Options', {
 	    },
 	};
 
-	var baseurl = 'nodes/' + nodename + '/lxc/' + vmid + '/config';
+	let baseurl = 'nodes/' + nodename + '/lxc/' + vmid + '/config';
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var edit_btn = new Proxmox.button.Button({
+	let edit_btn = new Proxmox.button.Button({
 	    text: gettext('Edit'),
 	    disabled: true,
 	    selModel: sm,
 	    enableFn: function(rec) {
-		var rowdef = rows[rec.data.key];
+		let rowdef = rows[rec.data.key];
 		return !!rowdef.editor;
 	    },
 	    handler: function() { me.run_editor(); },
 	});
 
-	var revert_btn = new PVE.button.PendingRevert();
+	let revert_btn = new PVE.button.PendingRevert();
 
-	var set_button_status = function() {
+	let set_button_status = function() {
 	    let button_sm = me.getSelectionModel();
 	    let rec = button_sm.getSelection()[0];
 
@@ -169,9 +169,9 @@ Ext.define('PVE.lxc.Options', {
 		return;
 	    }
 
-	    var key = rec.data.key;
-	    var pending = rec.data.delete || me.hasPendingChanges(key);
-	    var rowdef = rows[key];
+	    let key = rec.data.key;
+	    let pending = rec.data.delete || me.hasPendingChanges(key);
+	    let rowdef = rows[key];
 
 	    if (key === 'features') {
 		let unprivileged = me.getStore().getById('unprivileged').data.value;
diff --git a/www/manager6/lxc/ResourceEdit.js b/www/manager6/lxc/ResourceEdit.js
index 6f21571b..f4f0d76b 100644
--- a/www/manager6/lxc/ResourceEdit.js
+++ b/www/manager6/lxc/ResourceEdit.js
@@ -1,10 +1,10 @@
-var labelWidth = 120;
+let labelWidth = 120;
 
 Ext.define('PVE.lxc.MemoryEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	Ext.apply(me, {
 	    subject: gettext('Memory'),
@@ -22,7 +22,7 @@ Ext.define('PVE.lxc.CPUEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	Ext.apply(me, {
 	    subject: gettext('CPU'),
@@ -44,7 +44,7 @@ Ext.define('PVE.lxc.CPUInputPanel', {
     insideWizard: false,
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	PVE.Utils.delete_if_default(values, 'cores', '', me.insideWizard);
 	// cpu{limit,unit} aren't in the wizard so create is always false
@@ -81,7 +81,7 @@ Ext.define('PVE.lxc.CPUInputPanel', {
     ],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.column1 = [
 	    {
@@ -110,9 +110,9 @@ Ext.define('PVE.lxc.MemoryInputPanel', {
     insideWizard: false,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var items = [
+	let items = [
 	    {
 		xtype: 'proxmoxintegerfield',
 		name: 'memory',
diff --git a/www/manager6/lxc/Resources.js b/www/manager6/lxc/Resources.js
index 4b2ae95e..daa3c509 100644
--- a/www/manager6/lxc/Resources.js
+++ b/www/manager6/lxc/Resources.js
@@ -27,25 +27,25 @@ Ext.define('PVE.lxc.RessourceView', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 	let confid;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = me.pveSelNode.data.vmid;
+	let vmid = me.pveSelNode.data.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
 
-	var caps = Ext.state.Manager.get('GuiCap');
-	var diskCap = caps.vms['VM.Config.Disk'];
+	let caps = Ext.state.Manager.get('GuiCap');
+	let diskCap = caps.vms['VM.Config.Disk'];
 
-	var mpeditor = caps.vms['VM.Config.Disk'] ? 'PVE.lxc.MountPointEdit' : undefined;
+	let mpeditor = caps.vms['VM.Config.Disk'] ? 'PVE.lxc.MountPointEdit' : undefined;
 
-	var rows = {
+	let rows = {
 	    memory: {
 		header: gettext('Memory'),
 		editor: caps.vms['VM.Config.Memory'] ? 'PVE.lxc.MemoryEdit' : undefined,
@@ -73,9 +73,9 @@ Ext.define('PVE.lxc.RessourceView', {
 		tdCls: 'pmx-itype-icon-processor',
 		group: 3,
 		renderer: function(value) {
-		    var cpulimit = me.getObjectValue('cpulimit');
-		    var cpuunits = me.getObjectValue('cpuunits');
-		    var res;
+		    let cpulimit = me.getObjectValue('cpulimit');
+		    let cpuunits = me.getObjectValue('cpuunits');
+		    let res;
 		    if (value) {
 			res = value;
 		    } else {
@@ -112,8 +112,8 @@ Ext.define('PVE.lxc.RessourceView', {
 
 	PVE.Utils.forEachMP(function(bus, i) {
 	    confid = bus + i;
-	    var group = 5;
-	    var header;
+	    let group = 5;
+	    let header;
 	    if (bus === 'mp') {
 		header = gettext('Mount Point') + ' (' + confid + ')';
 	    } else {
@@ -129,17 +129,17 @@ Ext.define('PVE.lxc.RessourceView', {
 	    };
 	}, true);
 
-	var baseurl = 'nodes/' + nodename + '/lxc/' + vmid + '/config';
+	let baseurl = 'nodes/' + nodename + '/lxc/' + vmid + '/config';
 
 	me.selModel = Ext.create('Ext.selection.RowModel', {});
 
-	var run_resize = function() {
-	    var rec = me.selModel.getSelection()[0];
+	let run_resize = function() {
+	    let rec = me.selModel.getSelection()[0];
 	    if (!rec) {
 		return;
 	    }
 
-	    var win = Ext.create('PVE.window.MPResize', {
+	    let win = Ext.create('PVE.window.MPResize', {
 		disk: rec.data.key,
 		nodename: nodename,
 		vmid: vmid,
@@ -148,7 +148,7 @@ Ext.define('PVE.lxc.RessourceView', {
 	    win.show();
 	};
 
-	var run_remove = function(b, e, rec) {
+	let run_remove = function(b, e, rec) {
 	    Proxmox.Utils.API2Request({
 		url: '/api2/extjs/' + baseurl,
 		waitMsgTarget: me,
@@ -168,7 +168,7 @@ Ext.define('PVE.lxc.RessourceView', {
 		return;
 	    }
 
-	    var win = Ext.create('PVE.window.HDMove', {
+	    let win = Ext.create('PVE.window.HDMove', {
 		disk: rec.data.key,
 		nodename: nodename,
 		vmid: vmid,
@@ -198,7 +198,7 @@ Ext.define('PVE.lxc.RessourceView', {
 	    });
 	};
 
-	var edit_btn = new Proxmox.button.Button({
+	let edit_btn = new Proxmox.button.Button({
 	    text: gettext('Edit'),
 	    selModel: me.selModel,
 	    disabled: true,
@@ -206,13 +206,13 @@ Ext.define('PVE.lxc.RessourceView', {
 		if (!rec) {
 		    return false;
 		}
-		var rowdef = rows[rec.data.key];
+		let rowdef = rows[rec.data.key];
 		return !!rowdef.editor;
 	    },
 	    handler: function() { me.run_editor(); },
 	});
 
-	var remove_btn = new Proxmox.button.Button({
+	let remove_btn = new Proxmox.button.Button({
 	    text: gettext('Remove'),
 	    defaultText: gettext('Remove'),
 	    altText: gettext('Detach'),
diff --git a/www/manager6/node/ACME.js b/www/manager6/node/ACME.js
index 0642e7c5..fa94042e 100644
--- a/www/manager6/node/ACME.js
+++ b/www/manager6/node/ACME.js
@@ -64,14 +64,14 @@ Ext.define('PVE.node.ACMEAccountCreate', {
 	    },
 	    listeners: {
 		change: function(combogrid, value) {
-		    var me = this;
+		    let me = this;
 		    if (!value) {
 			return;
 		    }
 
-		    var disp = me.up('window').down('#tos_url_display');
-		    var field = me.up('window').down('#tos_url');
-		    var checkbox = me.up('window').down('#tos_checkbox');
+		    let disp = me.up('window').down('#tos_url_display');
+		    let field = me.up('window').down('#tos_url');
+		    let checkbox = me.up('window').down('#tos_checkbox');
 
 		    disp.setValue(gettext('Loading'));
 		    field.setValue(undefined);
@@ -164,7 +164,7 @@ Ext.define('PVE.node.ACMEAccountView', {
     ],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.accountname) {
 	    throw "no account name defined";
@@ -179,7 +179,7 @@ Ext.define('PVE.node.ACMEAccountView', {
 
 	me.load({
 	    success: function(response) {
-		var data = response.result.data;
+		let data = response.result.data;
 		data.email = data.account.contact[0];
 		data.createdAt = data.account.createdAt;
 		data.status = data.account.status;
@@ -523,7 +523,7 @@ Ext.define('PVE.node.ACME', {
 
 	orderFinished: function(success) {
 	    if (!success) return;
-	    var txt = gettext('pveproxy will be restarted with new certificates, please reload the GUI!');
+	    let txt = gettext('pveproxy will be restarted with new certificates, please reload the GUI!');
 	    Ext.getBody().mask(txt, ['pve-static-mask']);
 	    // reload after 10 seconds automatically
 	    Ext.defer(function() {
@@ -712,7 +712,7 @@ Ext.define('PVE.node.ACME', {
     ],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no nodename given";
diff --git a/www/manager6/node/Certificates.js b/www/manager6/node/Certificates.js
index ab9f0696..6f195730 100644
--- a/www/manager6/node/Certificates.js
+++ b/www/manager6/node/Certificates.js
@@ -339,7 +339,7 @@ Ext.define('PVE.node.Certificates', {
 	if (!selection || selection.length < 1) {
 	    return;
 	}
-	var win = Ext.create('PVE.node.CertificateViewer', {
+	let win = Ext.create('PVE.node.CertificateViewer', {
 	    cert: selection[0].data.filename,
 	    nodename: me.nodename,
 	});
@@ -351,7 +351,7 @@ Ext.define('PVE.node.Certificates', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no nodename given";
diff --git a/www/manager6/node/Config.js b/www/manager6/node/Config.js
index 7e5b1112..3d58f095 100644
--- a/www/manager6/node/Config.js
+++ b/www/manager6/node/Config.js
@@ -5,21 +5,21 @@ Ext.define('PVE.node.Config', {
     onlineHelp: 'chapter_system_administration',
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
 	me.statusStore = Ext.create('Proxmox.data.ObjectStore', {
 	    url: "/api2/json/nodes/" + nodename + "/status",
 	    interval: 5000,
 	});
 
-	var node_command = function(cmd) {
+	let node_command = function(cmd) {
 	    Proxmox.Utils.API2Request({
 		params: { command: cmd },
 		url: '/nodes/' + nodename + '/status',
@@ -31,7 +31,7 @@ Ext.define('PVE.node.Config', {
 	    });
 	};
 
-	var actionBtn = Ext.create('Ext.Button', {
+	let actionBtn = Ext.create('Ext.Button', {
 	    text: gettext('Bulk Actions'),
 	    iconCls: 'fa fa-fw fa-ellipsis-v',
 	    disabled: !caps.nodes['Sys.PowerMgmt'],
@@ -41,7 +41,7 @@ Ext.define('PVE.node.Config', {
 			text: gettext('Bulk Start'),
 			iconCls: 'fa fa-fw fa-play',
 			handler: function() {
-			    var win = Ext.create('PVE.window.BulkAction', {
+			    let win = Ext.create('PVE.window.BulkAction', {
 				nodename: nodename,
 				title: gettext('Bulk Start'),
 				btnText: gettext('Start'),
@@ -54,7 +54,7 @@ Ext.define('PVE.node.Config', {
 			text: gettext('Bulk Stop'),
 			iconCls: 'fa fa-fw fa-stop',
 			handler: function() {
-			    var win = Ext.create('PVE.window.BulkAction', {
+			    let win = Ext.create('PVE.window.BulkAction', {
 				nodename: nodename,
 				title: gettext('Bulk Stop'),
 				btnText: gettext('Stop'),
@@ -67,7 +67,7 @@ Ext.define('PVE.node.Config', {
 			text: gettext('Bulk Migrate'),
 			iconCls: 'fa fa-fw fa-send-o',
 			handler: function() {
-			    var win = Ext.create('PVE.window.BulkAction', {
+			    let win = Ext.create('PVE.window.BulkAction', {
 				nodename: nodename,
 				title: gettext('Bulk Migrate'),
 				btnText: gettext('Migrate'),
@@ -91,7 +91,7 @@ Ext.define('PVE.node.Config', {
 	    iconCls: 'fa fa-undo',
 	});
 
-	var shutdownBtn = Ext.create('Proxmox.button.Button', {
+	let shutdownBtn = Ext.create('Proxmox.button.Button', {
 	    text: gettext('Shutdown'),
 	    disabled: !caps.nodes['Sys.PowerMgmt'],
 	    dangerous: true,
@@ -102,7 +102,7 @@ Ext.define('PVE.node.Config', {
 	    iconCls: 'fa fa-power-off',
 	});
 
-	var shellBtn = Ext.create('PVE.button.ConsoleButton', {
+	let shellBtn = Ext.create('PVE.button.ConsoleButton', {
 	    disabled: !caps.nodes['Sys.Console'],
 	    text: gettext('Shell'),
 	    consoleType: 'shell',
diff --git a/www/manager6/node/Directory.js b/www/manager6/node/Directory.js
index d79c0d63..685af75a 100644
--- a/www/manager6/node/Directory.js
+++ b/www/manager6/node/Directory.js
@@ -9,7 +9,7 @@ Ext.define('PVE.node.CreateDirectory', {
     onlineHelp: 'chapter_storage',
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
diff --git a/www/manager6/node/LVMThin.js b/www/manager6/node/LVMThin.js
index b9ad4b8d..b77fbb43 100644
--- a/www/manager6/node/LVMThin.js
+++ b/www/manager6/node/LVMThin.js
@@ -175,7 +175,7 @@ Ext.define('PVE.node.LVMThinList', {
 	{
 	    text: gettext('Create') + ': Thinpool',
 	    handler: function() {
-		var view = this.up('panel');
+		let view = this.up('panel');
 		Ext.create('PVE.node.CreateLVMThin', {
 		    nodename: view.nodename,
 		    taskDone: () => view.reload(),
diff --git a/www/manager6/node/StatusView.js b/www/manager6/node/StatusView.js
index d34724f7..33e61197 100644
--- a/www/manager6/node/StatusView.js
+++ b/www/manager6/node/StatusView.js
@@ -116,8 +116,8 @@ Ext.define('PVE.node.StatusView', {
     ],
 
     updateTitle: function() {
-	var me = this;
-	var uptime = Proxmox.Utils.render_uptime(me.getRecordValue('uptime'));
+	let me = this;
+	let uptime = Proxmox.Utils.render_uptime(me.getRecordValue('uptime'));
 	me.setTitle(me.pveSelNode.data.node + ' (' + gettext('Uptime') + ': ' + uptime + ')');
     },
 
diff --git a/www/manager6/node/Subscription.js b/www/manager6/node/Subscription.js
index 2558f523..3e21ba8f 100644
--- a/www/manager6/node/Subscription.js
+++ b/www/manager6/node/Subscription.js
@@ -9,7 +9,7 @@ Ext.define('PVE.node.SubscriptionKeyEdit', {
 	fieldLabel: gettext('Subscription Key'),
     },
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
 
@@ -29,14 +29,14 @@ Ext.define('PVE.node.Subscription', {
     },
 
     showReport: function() {
-	var me = this;
+	let me = this;
 
-	var getReportFileName = function() {
-	    var now = Ext.Date.format(new Date(), 'D-d-F-Y-G-i');
+	let getReportFileName = function() {
+	    let now = Ext.Date.format(new Date(), 'D-d-F-Y-G-i');
 	    return `${me.nodename}-pve-report-${now}.txt`;
 	};
 
-	var view = Ext.createWidget('component', {
+	let view = Ext.createWidget('component', {
 	    itemId: 'system-report-view',
 	    scrollable: true,
 	    style: {
@@ -47,7 +47,7 @@ Ext.define('PVE.node.Subscription', {
 	    },
 	});
 
-	var reportWindow = Ext.create('Ext.window.Window', {
+	let reportWindow = Ext.create('Ext.window.Window', {
 	    title: gettext('System Report'),
 	    width: 1024,
 	    height: 600,
@@ -58,14 +58,14 @@ Ext.define('PVE.node.Subscription', {
 		{
 		    text: gettext('Download'),
 		    handler: function() {
-			var fileContent = Ext.String.htmlDecode(reportWindow.getComponent('system-report-view').html);
-			var fileName = getReportFileName();
+			let fileContent = Ext.String.htmlDecode(reportWindow.getComponent('system-report-view').html);
+			let fileName = getReportFileName();
 
 			// Internet Explorer
 			if (window.navigator.msSaveOrOpenBlob) {
 			    navigator.msSaveOrOpenBlob(new Blob([fileContent]), fileName);
 			} else {
-			    var element = document.createElement('a');
+			    let element = document.createElement('a');
 			    element.setAttribute('href', 'data:text/plain;charset=utf-8,' +
 			      encodeURIComponent(fileContent));
 			    element.setAttribute('download', fileName);
@@ -88,7 +88,7 @@ Ext.define('PVE.node.Subscription', {
 		Ext.Msg.alert(gettext('Error'), response.htmlStatus);
 	    },
 	    success: function(response) {
-		var report = Ext.htmlEncode(response.result.data);
+		let report = Ext.htmlEncode(response.result.data);
 		reportWindow.show();
 		view.update(report);
 	    },
@@ -96,27 +96,27 @@ Ext.define('PVE.node.Subscription', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
 	}
 
-	var reload = function() {
+	let reload = function() {
 	    me.rstore.load();
 	};
 
-	var baseurl = '/nodes/' + me.nodename + '/subscription';
+	let baseurl = '/nodes/' + me.nodename + '/subscription';
 
-	var render_status = function(value) {
-	    var message = me.getObjectValue('message');
+	let render_status = function(value) {
+	    let message = me.getObjectValue('message');
 	    if (message) {
 		return value + ": " + message;
 	    }
 	    return value;
 	};
 
-	var rows = {
+	let rows = {
 	    productname: {
 		header: gettext('Type'),
 	    },
@@ -152,7 +152,7 @@ Ext.define('PVE.node.Subscription', {
 		{
 		    text: gettext('Upload Subscription Key'),
 		    handler: function() {
-			var win = Ext.create('PVE.node.SubscriptionKeyEdit', {
+			let win = Ext.create('PVE.node.SubscriptionKeyEdit', {
 			    url: '/api2/extjs/' + baseurl,
 			});
 			win.show();
diff --git a/www/manager6/node/Summary.js b/www/manager6/node/Summary.js
index 8680fa5f..916a1ce5 100644
--- a/www/manager6/node/Summary.js
+++ b/www/manager6/node/Summary.js
@@ -6,14 +6,14 @@ Ext.define('PVE.node.Summary', {
     bodyPadding: 5,
 
     showVersions: function() {
-	var me = this;
+	let me = this;
 
 	// Note: we use simply text/html here, because ExtJS grid has problems
 	// with cut&paste
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 
-	var view = Ext.createWidget('component', {
+	let view = Ext.createWidget('component', {
 	    autoScroll: true,
 	    id: 'pkgversions',
 	    padding: 5,
@@ -24,7 +24,7 @@ Ext.define('PVE.node.Summary', {
 	    },
 	});
 
-	var win = Ext.create('Ext.window.Window', {
+	let win = Ext.create('Ext.window.Window', {
 	    title: gettext('Package versions'),
 	    width: 600,
 	    height: 600,
@@ -109,9 +109,9 @@ Ext.define('PVE.node.Summary', {
     },
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
@@ -120,16 +120,16 @@ Ext.define('PVE.node.Summary', {
 	    throw "no status storage specified";
 	}
 
-	var rstore = me.statusStore;
+	let rstore = me.statusStore;
 
-	var version_btn = new Ext.Button({
+	let version_btn = new Ext.Button({
 	    text: gettext('Package versions'),
 	    handler: function() {
 		Proxmox.Utils.checked_command(function() { me.showVersions(); });
 	    },
 	});
 
-	var rrdstore = Ext.create('Proxmox.data.RRDStore', {
+	let rrdstore = Ext.create('Proxmox.data.RRDStore', {
 	    rrdurl: "/api2/json/nodes/" + nodename + "/rrddata",
 	    model: 'pve-rrd-node',
 	});
diff --git a/www/manager6/node/ZFS.js b/www/manager6/node/ZFS.js
index 5b3bdbda..f0e9e163 100644
--- a/www/manager6/node/ZFS.js
+++ b/www/manager6/node/ZFS.js
@@ -272,11 +272,11 @@ Ext.define('PVE.node.ZFSList', {
     },
 
     set_button_status: function() {
-	var me = this;
+	let me = this;
     },
 
     reload: function() {
-	var me = this;
+	let me = this;
 	me.store.load();
 	me.store.sort();
     },
diff --git a/www/manager6/panel/ConfigPanel.js b/www/manager6/panel/ConfigPanel.js
index 224bc768..af7d1716 100644
--- a/www/manager6/panel/ConfigPanel.js
+++ b/www/manager6/panel/ConfigPanel.js
@@ -78,8 +78,8 @@ Ext.define('PVE.panel.Config', {
 		    view.updateLayout();
 		},
 		itemclick: function(treelist, info) {
-		    var olditem = treelist.getSelection();
-		    var newitem = info.node;
+		    let olditem = treelist.getSelection();
+		    let newitem = info.node;
 
 		    // when clicking on the expand arrow, we don't select items, but still want the original behaviour
 		    if (info.select === false) {
@@ -111,14 +111,14 @@ Ext.define('PVE.panel.Config', {
 
     // used for automated test
     selectById: function(cardid) {
-	var me = this;
+	let me = this;
 
-	var root = me.store.getRoot();
-	var selection = root.findChild('id', cardid, true);
+	let root = me.store.getRoot();
+	let selection = root.findChild('id', cardid, true);
 
 	if (selection) {
 	    selection.expand();
-	    var menu = me.down('#menu');
+	    let menu = me.down('#menu');
 	    menu.setSelection(selection);
 	    return cardid;
 	}
@@ -126,10 +126,10 @@ Ext.define('PVE.panel.Config', {
     },
 
     activateCard: function(cardid) {
-	var me = this;
+	let me = this;
 	if (me.savedItems[cardid]) {
-	    var curcard = me.getLayout().getActiveItem();
-	    var newcard = me.add(me.savedItems[cardid]);
+	    let curcard = me.getLayout().getActiveItem();
+	    let newcard = me.add(me.savedItems[cardid]);
 	    me.helpButton.setOnlineHelp(newcard.onlineHelp || me.onlineHelp);
 	    if (curcard) {
 		me.setActiveItem(cardid);
@@ -137,7 +137,7 @@ Ext.define('PVE.panel.Config', {
 
 		// trigger state change
 
-		var ncard = cardid;
+		let ncard = cardid;
 		// Note: '' is alias for first tab.
 		// First tab can be 'search' or something else
 		if (cardid === me.firstItem) {
@@ -151,13 +151,13 @@ Ext.define('PVE.panel.Config', {
     },
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var stateid = me.hstateid;
+	let stateid = me.hstateid;
 
 	me.sp = Ext.state.Manager.getProvider();
 
-	var activeTab; // leaving this undefined means items[0] will be the default tab
+	let activeTab; // leaving this undefined means items[0] will be the default tab
 
 	if (stateid) {
 	    let state = me.sp.get(stateid);
@@ -168,11 +168,11 @@ Ext.define('PVE.panel.Config', {
 	}
 
 	// get title
-	var title = me.title || me.pveSelNode.data.text;
+	let title = me.title || me.pveSelNode.data.text;
 	me.title = undefined;
 
 	// create toolbar
-	var tbar = me.tbar || [];
+	let tbar = me.tbar || [];
 	me.tbar = undefined;
 
 	if (!me.onlineHelp) {
@@ -226,7 +226,7 @@ Ext.define('PVE.panel.Config', {
 		expanded: true,
 	    },
 	});
-	var root = me.store.getRoot();
+	let root = me.store.getRoot();
 	me.insertNodes(me.items);
 
 	delete me.items;
@@ -240,9 +240,9 @@ Ext.define('PVE.panel.Config', {
 
 	me.callParent();
 
-	var menu = me.down('#menu');
-	var selection = root.findChild('id', activeTab, true) || root.firstChild;
-	var node = selection;
+	let menu = me.down('#menu');
+	let selection = root.findChild('id', activeTab, true) || root.firstChild;
+	let node = selection;
 	while (node !== root) {
 	    node.expand();
 	    node = node.parentNode;
@@ -252,13 +252,13 @@ Ext.define('PVE.panel.Config', {
 
 	// on a state change,
 	// select the new item
-	var statechange = function(sp, key, state) {
+	let statechange = function(sp, key, state) {
 	    // it the state change is for this panel
 	    if (stateid && key === stateid && state) {
 		// get active item
-		var acard = me.getLayout().getActiveItem().itemId;
+		let acard = me.getLayout().getActiveItem().itemId;
 		// get the itemid of the new value
-		var ncard = state.value || me.firstItem;
+		let ncard = state.value || me.firstItem;
 		if (ncard && acard !== ncard) {
 		    // select the chosen item
 		    menu.setSelection(root.findChild('id', ncard, true) || root.firstChild);
@@ -272,11 +272,11 @@ Ext.define('PVE.panel.Config', {
     },
 
     insertNodes: function(items) {
-	var me = this;
-	var root = me.store.getRoot();
+	let me = this;
+	let root = me.store.getRoot();
 
 	items.forEach(function(item) {
-	    var treeitem = Ext.create('Ext.data.TreeModel', {
+	    let treeitem = Ext.create('Ext.data.TreeModel', {
 		id: item.itemId,
 		text: item.title,
 		iconCls: item.iconCls,
@@ -289,14 +289,14 @@ Ext.define('PVE.panel.Config', {
 	    }
 	    me.savedItems[item.itemId] = item;
 
-	    var group;
-	    var curnode = root;
+	    let group;
+	    let curnode = root;
 
 	    // get/create the group items
 	    while (Ext.isArray(item.groups) && item.groups.length > 0) {
 		group = item.groups.shift();
 
-		var child = curnode.findChild('id', group);
+		let child = curnode.findChild('id', group);
 		if (child === null) {
 		    // did not find the group item
 		    // so add it where we are
@@ -308,7 +308,7 @@ Ext.define('PVE.panel.Config', {
 	    // insert the item
 
 	    // lets see if it already exists
-	    var node = curnode.findChild('id', item.itemId);
+	    let node = curnode.findChild('id', item.itemId);
 
 	    if (node === null) {
 		curnode.appendChild(treeitem);
diff --git a/www/manager6/panel/GuestStatusView.js b/www/manager6/panel/GuestStatusView.js
index 8db1f492..ab187038 100644
--- a/www/manager6/panel/GuestStatusView.js
+++ b/www/manager6/panel/GuestStatusView.js
@@ -4,7 +4,7 @@ Ext.define('PVE.panel.GuestStatusView', {
     mixins: ['Proxmox.Mixin.CBind'],
 
     cbindData: function(initialConfig) {
-	var me = this;
+	let me = this;
 	return {
 	    isQemu: me.pveSelNode.data.type === 'qemu',
 	    isLxc: me.pveSelNode.data.type === 'lxc',
@@ -32,9 +32,9 @@ Ext.define('PVE.panel.GuestStatusView', {
 	    printBar: false,
 	    multiField: true,
 	    renderer: function(record) {
-		var me = this;
-		var text = record.data.status;
-		var qmpstatus = record.data.qmpstatus;
+		let me = this;
+		let text = record.data.status;
+		let qmpstatus = record.data.qmpstatus;
 		if (qmpstatus && qmpstatus !== record.data.status) {
 		    text += ' (' + qmpstatus + ')';
 		}
@@ -99,7 +99,7 @@ Ext.define('PVE.panel.GuestStatusView', {
 	    maxField: 'maxdisk',
 	    printBar: false,
 	    renderer: function(used, max) {
-		var me = this;
+		let me = this;
 		me.setPrintBar(used > 0);
 		if (used === 0) {
 		    return Proxmox.Utils.render_size(max);
@@ -125,10 +125,10 @@ Ext.define('PVE.panel.GuestStatusView', {
     ],
 
     updateTitle: function() {
-	var me = this;
-	var uptime = me.getRecordValue('uptime');
+	let me = this;
+	let uptime = me.getRecordValue('uptime');
 
-	var text = "";
+	let text = "";
 	if (Number(uptime) > 0) {
 	    text = " (" + gettext('Uptime') + ': ' + Proxmox.Utils.format_duration_long(uptime)
 		+ ')';
diff --git a/www/manager6/panel/GuestSummary.js b/www/manager6/panel/GuestSummary.js
index 35721419..1094be44 100644
--- a/www/manager6/panel/GuestSummary.js
+++ b/www/manager6/panel/GuestSummary.js
@@ -6,14 +6,14 @@ Ext.define('PVE.qemu.Summary', {
     bodyPadding: 5,
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = me.pveSelNode.data.vmid;
+	let vmid = me.pveSelNode.data.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
@@ -26,11 +26,11 @@ Ext.define('PVE.qemu.Summary', {
 	    throw "no status storage specified";
 	}
 
-	var type = me.pveSelNode.data.type;
-	var template = !!me.pveSelNode.data.template;
-	var rstore = me.statusStore;
+	let type = me.pveSelNode.data.type;
+	let template = !!me.pveSelNode.data.template;
+	let rstore = me.statusStore;
 
-	var items = [
+	let items = [
 	    {
 		xtype: template ? 'pveTemplateStatusView' : 'pveGuestStatusView',
 		flex: 1,
@@ -48,7 +48,7 @@ Ext.define('PVE.qemu.Summary', {
 	    },
 	];
 
-	var rrdstore;
+	let rrdstore;
 	if (!template) {
 	    // in non-template mode put the two panels always together
 	    items = [
diff --git a/www/manager6/panel/HealthWidget.js b/www/manager6/panel/HealthWidget.js
index 3543223a..51743483 100644
--- a/www/manager6/panel/HealthWidget.js
+++ b/www/manager6/panel/HealthWidget.js
@@ -20,12 +20,12 @@ Ext.define('PVE.widget.HealthWidget', {
     ],
 
     updateHealth: function(data) {
-	var me = this;
+	let me = this;
 	me.update(Ext.apply(me.data, data));
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (me.title) {
 	    me.config.data.title = me.title;
diff --git a/www/manager6/panel/IPSet.js b/www/manager6/panel/IPSet.js
index a4606769..8d8511a7 100644
--- a/www/manager6/panel/IPSet.js
+++ b/www/manager6/panel/IPSet.js
@@ -20,7 +20,7 @@ Ext.define('PVE.IPSetList', {
     editBtn: undefined,
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	if (typeof me.ipset_panel === 'undefined') {
 	    throw "no rule panel specified";
@@ -30,7 +30,7 @@ Ext.define('PVE.IPSetList', {
 	    throw "no base_url specified";
 	}
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-fw-ipsets',
 	    proxy: {
 		type: 'proxmox',
@@ -42,13 +42,13 @@ Ext.define('PVE.IPSetList', {
 	    },
 	});
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var reload = function() {
-	    var oldrec = sm.getSelection()[0];
+	let reload = function() {
+	    let oldrec = sm.getSelection()[0];
 	    store.load(function(records, operation, success) {
 		if (oldrec) {
-		    var rec = store.findRecord('name', oldrec.data.name, 0, false, true, true);
+		    let rec = store.findRecord('name', oldrec.data.name, 0, false, true, true);
 		    if (rec) {
 			sm.select(rec);
 		    }
@@ -56,12 +56,12 @@ Ext.define('PVE.IPSetList', {
 	    });
 	};
 
-	var run_editor = function() {
-	    var rec = sm.getSelection()[0];
+	let run_editor = function() {
+	    let rec = sm.getSelection()[0];
 	    if (!rec) {
 		return;
 	    }
-	    var win = Ext.create('Proxmox.window.Edit', {
+	    let win = Ext.create('Proxmox.window.Edit', {
 		subject: "IPSet '" + rec.data.name + "'",
 		url: me.base_url,
 		method: 'POST',
@@ -102,7 +102,7 @@ Ext.define('PVE.IPSetList', {
 	    text: gettext('Create'),
 	    handler: function() {
 		sm.deselectAll();
-		var win = Ext.create('Proxmox.window.Edit', {
+		let win = Ext.create('Proxmox.window.Edit', {
 		    subject: 'IPSet',
 		    url: me.base_url,
 		    method: 'POST',
@@ -144,7 +144,7 @@ Ext.define('PVE.IPSetList', {
 	    listeners: {
 		itemdblclick: run_editor,
 		select: function(_, rec) {
-		    var url = me.base_url + '/' + rec.data.name;
+		    let url = me.base_url + '/' + rec.data.name;
 		    me.ipset_panel.setBaseUrl(url);
 		},
 		deselect: function() {
@@ -166,7 +166,7 @@ Ext.define('PVE.IPSetCidrEdit', {
     cidr: undefined,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = me.cidr === undefined;
 
@@ -179,7 +179,7 @@ Ext.define('PVE.IPSetCidrEdit', {
             me.method = 'PUT';
         }
 
-	var column1 = [];
+	let column1 = [];
 
 	if (me.isCreate) {
 	    if (!me.list_refs_url) {
@@ -205,7 +205,7 @@ Ext.define('PVE.IPSetCidrEdit', {
 	    });
 	}
 
-	var ipanel = Ext.create('Proxmox.panel.InputPanel', {
+	let ipanel = Ext.create('Proxmox.panel.InputPanel', {
 	    isCreate: me.isCreate,
 	    column1: column1,
 	    column2: [
@@ -237,7 +237,7 @@ Ext.define('PVE.IPSetCidrEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
+		    let values = response.result.data;
 		    ipanel.setValues(values);
 		},
 	    });
@@ -260,7 +260,7 @@ Ext.define('PVE.IPSetGrid', {
     editBtn: undefined,
 
     setBaseUrl: function(url) {
-        var me = this;
+        let me = this;
 
 	me.base_url = url;
 
@@ -280,28 +280,28 @@ Ext.define('PVE.IPSetGrid', {
     },
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	if (!me.list_refs_url) {
 	    throw "no1 list_refs_url specified";
 	}
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-ipset',
 	});
 
-	var reload = function() {
+	let reload = function() {
 	    store.load();
 	};
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var run_editor = function() {
-	    var rec = sm.getSelection()[0];
+	let run_editor = function() {
+	    let rec = sm.getSelection()[0];
 	    if (!rec) {
 		return;
 	    }
-	    var win = Ext.create('PVE.IPSetCidrEdit', {
+	    let win = Ext.create('PVE.IPSetCidrEdit', {
 		base_url: me.base_url,
 		cidr: rec.data.cidr,
 	    });
@@ -323,7 +323,7 @@ Ext.define('PVE.IPSetGrid', {
 		if (!me.base_url) {
 		    return;
 		}
-		var win = Ext.create('PVE.IPSetCidrEdit', {
+		let win = Ext.create('PVE.IPSetCidrEdit', {
 		    base_url: me.base_url,
 		    list_refs_url: me.list_refs_url,
 		});
@@ -338,13 +338,13 @@ Ext.define('PVE.IPSetGrid', {
 	    callback: reload,
 	});
 
-	var render_errors = function(value, metaData, record) {
-	    var errors = record.data.errors;
+	let render_errors = function(value, metaData, record) {
+	    let errors = record.data.errors;
 	    if (errors) {
-		var msg = errors.cidr || errors.nomatch;
+		let msg = errors.cidr || errors.nomatch;
 		if (msg) {
 		    metaData.tdCls = 'proxmox-invalid-row';
-		    var html = '<p>' + Ext.htmlEncode(msg) + '</p>';
+		    let html = '<p>' + Ext.htmlEncode(msg) + '</p>';
 		    metaData.tdAttr = 'data-qwidth=600 data-qtitle="ERROR" data-qtip="' +
 			html.replace(/"/g, '"') + '"';
 		}
@@ -412,19 +412,19 @@ Ext.define('PVE.IPSet', {
     list_refs_url: undefined,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.list_refs_url) {
 	    throw "no list_refs_url specified";
 	}
 
-	var ipset_panel = Ext.createWidget('pveIPSetGrid', {
+	let ipset_panel = Ext.createWidget('pveIPSetGrid', {
 	    region: 'center',
 	    list_refs_url: me.list_refs_url,
 	    border: false,
 	});
 
-	var ipset_list = Ext.createWidget('pveIPSetList', {
+	let ipset_list = Ext.createWidget('pveIPSetList', {
 	    region: 'west',
 	    ipset_panel: ipset_panel,
 	    base_url: me.base_url,
diff --git a/www/manager6/panel/RunningChart.js b/www/manager6/panel/RunningChart.js
index 19db8b50..d0c72934 100644
--- a/www/manager6/panel/RunningChart.js
+++ b/www/manager6/panel/RunningChart.js
@@ -117,7 +117,7 @@ Ext.define('PVE.widget.RunningChart', {
 	// we prevent a memory leak when someone has the site open for a long time
 	// with minimal graphical glitches
 	if (view.store.count() > panel.timeFrame * 20) {
-	    var oldData = view.store.getData().createFiltered(function(item) {
+	    let oldData = view.store.getData().createFiltered(function(item) {
 		return item.data.time < begin;
 	    });
 
@@ -141,7 +141,7 @@ Ext.define('PVE.widget.RunningChart', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 	me.callParent();
 
 	if (me.title) {
diff --git a/www/manager6/panel/StatusPanel.js b/www/manager6/panel/StatusPanel.js
index f9e3537b..d078b7e4 100644
--- a/www/manager6/panel/StatusPanel.js
+++ b/www/manager6/panel/StatusPanel.js
@@ -10,12 +10,12 @@ Ext.define('PVE.panel.StatusPanel', {
     //tabPosition: 'bottom',
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var stateid = 'ltab';
-	var sp = Ext.state.Manager.getProvider();
+	let stateid = 'ltab';
+	let sp = Ext.state.Manager.getProvider();
 
-	var state = sp.get(stateid);
+	let state = sp.get(stateid);
 	if (state && state.value) {
 	    me.activeTab = state.value;
 	}
@@ -23,7 +23,7 @@ Ext.define('PVE.panel.StatusPanel', {
 	Ext.apply(me, {
 	    listeners: {
 		tabchange: function() {
-		    var atab = me.getActiveTab().itemId;
+		    let atab = me.getActiveTab().itemId;
 		    let tabstate = { value: atab };
 		    sp.set(stateid, tabstate);
 		},
@@ -46,9 +46,9 @@ Ext.define('PVE.panel.StatusPanel', {
 
 	me.items.get(0).fireEvent('show', me.items.get(0));
 
-	var statechange = function(_, key, newstate) {
+	let statechange = function(_, key, newstate) {
 	    if (key === stateid) {
-		var atab = me.getActiveTab().itemId;
+		let atab = me.getActiveTab().itemId;
 		let ntab = newstate.value;
 		if (newstate && ntab && atab !== ntab) {
 		    me.setActiveTab(ntab);
diff --git a/www/manager6/panel/TemplateStatusView.js b/www/manager6/panel/TemplateStatusView.js
index 4e17a41c..7cab05ed 100644
--- a/www/manager6/panel/TemplateStatusView.js
+++ b/www/manager6/panel/TemplateStatusView.js
@@ -68,9 +68,9 @@ Ext.define('PVE.panel.TemplateStatusView', {
     ],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var name = me.pveSelNode.data.name;
+	let name = me.pveSelNode.data.name;
 	if (!name) {
 	    throw "no name specified";
 	}
diff --git a/www/manager6/pool/Config.js b/www/manager6/pool/Config.js
index 1f04ba0e..7c4c5240 100644
--- a/www/manager6/pool/Config.js
+++ b/www/manager6/pool/Config.js
@@ -5,9 +5,9 @@ Ext.define('PVE.pool.Config', {
     onlineHelp: 'pveum_pools',
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var pool = me.pveSelNode.data.pool;
+	let pool = me.pveSelNode.data.pool;
 	if (!pool) {
 	    throw "no pool specified";
 	}
diff --git a/www/manager6/pool/StatusView.js b/www/manager6/pool/StatusView.js
index 302ae5ab..6f57f7b2 100644
--- a/www/manager6/pool/StatusView.js
+++ b/www/manager6/pool/StatusView.js
@@ -8,14 +8,14 @@ Ext.define('PVE.pool.StatusView', {
     interval: 30000,
     //height: 195,
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var pool = me.pveSelNode.data.pool;
+	let pool = me.pveSelNode.data.pool;
 	if (!pool) {
 	    throw "no pool specified";
 	}
 
-	var rows = {
+	let rows = {
 	    comment: {
 		header: gettext('Comment'),
 		renderer: Ext.String.htmlEncode,
diff --git a/www/manager6/pool/Summary.js b/www/manager6/pool/Summary.js
index 1a47428d..837b183f 100644
--- a/www/manager6/pool/Summary.js
+++ b/www/manager6/pool/Summary.js
@@ -3,19 +3,19 @@ Ext.define('PVE.pool.Summary', {
     alias: 'widget.pvePoolSummary',
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var pool = me.pveSelNode.data.pool;
+	let pool = me.pveSelNode.data.pool;
 	if (!pool) {
 	    throw "no pool specified";
 	}
 
-	var statusview = Ext.create('PVE.pool.StatusView', {
+	let statusview = Ext.create('PVE.pool.StatusView', {
 	    pveSelNode: me.pveSelNode,
 	    style: 'padding-top:0px',
 	});
 
-	var rstore = statusview.rstore;
+	let rstore = statusview.rstore;
 
 	Ext.apply(me, {
 	    autoScroll: true,
diff --git a/www/manager6/qemu/AgentIPView.js b/www/manager6/qemu/AgentIPView.js
index 1411361a..d67852b7 100644
--- a/www/manager6/qemu/AgentIPView.js
+++ b/www/manager6/qemu/AgentIPView.js
@@ -32,10 +32,10 @@ Ext.define('PVE.window.IPInfo', {
 			if (!Ext.isArray(val)) {
 			    return '';
 			}
-			var ips = [];
+			let ips = [];
 			val.forEach(function(ip) {
-			    var addr = ip['ip-address'];
-			    var pref = ip.prefix;
+			    let addr = ip['ip-address'];
+			    let pref = ip.prefix;
 			    if (addr && pref) {
 				ips.push(addr + '/' + pref);
 			    }
@@ -89,7 +89,7 @@ Ext.define('PVE.qemu.AgentIPView', {
 		    handler: function(btn) {
 			let view = this.up('pveAgentIPView');
 
-			var win = Ext.create('PVE.window.IPInfo');
+			let win = Ext.create('PVE.window.IPInfo');
 			win.down('grid').getStore().setData(view.nics);
 			win.show();
 		    },
@@ -100,15 +100,15 @@ Ext.define('PVE.qemu.AgentIPView', {
     ],
 
     getDefaultIps: function(nics) {
-	var me = this;
-	var ips = [];
+	let me = this;
+	let ips = [];
 	nics.forEach(function(nic) {
 	    if (nic['hardware-address'] &&
 		nic['hardware-address'] !== '00:00:00:00:00:00' &&
 		nic['hardware-address'] !== '0:0:0:0:0:0') {
-		var nic_ips = nic['ip-addresses'] || [];
+		let nic_ips = nic['ip-addresses'] || [];
 		nic_ips.forEach(function(ip) {
-		    var p = ip['ip-address'];
+		    let p = ip['ip-address'];
 		    // show 2 ips at maximum
 		    if (ips.length < 2) {
 			ips.push(p);
@@ -121,17 +121,17 @@ Ext.define('PVE.qemu.AgentIPView', {
     },
 
     startIPStore: function(store, records, success) {
-	var me = this;
+	let me = this;
 	let agentRec = store.getById('agent');
 	let state = store.getById('status');
 
 	me.agent = agentRec && agentRec.data.value === 1;
 	me.running = state && state.data.value === 'running';
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
 	if (!caps.vms['VM.Monitor']) {
-	    var errorText = gettext("Requires '{0}' Privileges");
+	    let errorText = gettext("Requires '{0}' Privileges");
 	    me.updateStatus(false, Ext.String.format(errorText, 'VM.Monitor'));
 	    return;
 	}
@@ -144,15 +144,15 @@ Ext.define('PVE.qemu.AgentIPView', {
     },
 
     updateStatus: function(unsuccessful, defaulttext) {
-	var me = this;
-	var text = defaulttext || gettext('No network information');
-	var more = false;
+	let me = this;
+	let text = defaulttext || gettext('No network information');
+	let more = false;
 	if (unsuccessful) {
 	    text = gettext('Guest Agent not running');
 	} else if (me.agent && me.running) {
 	    if (Ext.isArray(me.nics) && me.nics.length) {
 		more = true;
-		var ips = me.getDefaultIps(me.nics);
+		let ips = me.getDefaultIps(me.nics);
 		if (ips.length !== 0) {
 		    text = ips.join('<br>');
 		}
@@ -165,15 +165,15 @@ Ext.define('PVE.qemu.AgentIPView', {
 	    text = gettext('No Guest Agent configured');
 	}
 
-	var ipBox = me.down('#ipBox');
+	let ipBox = me.down('#ipBox');
 	ipBox.update(text);
 
-	var moreBtn = me.down('#moreBtn');
+	let moreBtn = me.down('#moreBtn');
 	moreBtn.setVisible(more);
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.rstore) {
 	    throw 'rstore not given';
@@ -183,8 +183,8 @@ Ext.define('PVE.qemu.AgentIPView', {
 	    throw 'pveSelNode not given';
 	}
 
-	var nodename = me.pveSelNode.data.node;
-	var vmid = me.pveSelNode.data.vmid;
+	let nodename = me.pveSelNode.data.node;
+	let vmid = me.pveSelNode.data.vmid;
 
 	me.ipStore = Ext.create('Proxmox.data.UpdateStore', {
 	    interval: 10000,
diff --git a/www/manager6/qemu/AudioEdit.js b/www/manager6/qemu/AudioEdit.js
index e7861ceb..ff85c907 100644
--- a/www/manager6/qemu/AudioEdit.js
+++ b/www/manager6/qemu/AudioEdit.js
@@ -6,7 +6,7 @@ Ext.define('PVE.qemu.AudioInputPanel', {
     //onlineHelp: 'qm_audio_device',
 
     onGetValues: function(values) {
-	var ret = PVE.Parser.printPropertyString(values);
+	let ret = PVE.Parser.printPropertyString(values);
 	if (ret === '') {
 	    return {
 		'delete': 'audio0',
@@ -51,7 +51,7 @@ Ext.define('PVE.qemu.AudioEdit', {
     }],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
 
@@ -59,7 +59,7 @@ Ext.define('PVE.qemu.AudioEdit', {
 	    success: function(response) {
 		me.vmconfig = response.result.data;
 
-		var audio0 = me.vmconfig.audio0;
+		let audio0 = me.vmconfig.audio0;
 		if (audio0) {
 		    me.setValues(PVE.Parser.parsePropertyString(audio0));
 		}
diff --git a/www/manager6/qemu/CDEdit.js b/www/manager6/qemu/CDEdit.js
index fc7a59cc..d3b76432 100644
--- a/www/manager6/qemu/CDEdit.js
+++ b/www/manager6/qemu/CDEdit.js
@@ -5,9 +5,9 @@ Ext.define('PVE.qemu.CDInputPanel', {
     insideWizard: false,
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var confid = me.confid || values.controller + values.deviceid;
+	let confid = me.confid || values.controller + values.deviceid;
 
 	me.drive.media = 'cdrom';
 	if (values.mediaType === 'iso') {
@@ -18,7 +18,7 @@ Ext.define('PVE.qemu.CDInputPanel', {
 	    me.drive.file = 'none';
 	}
 
-	var params = {};
+	let params = {};
 
 	params[confid] = PVE.Parser.printQemuDrive(me.drive);
 
@@ -26,7 +26,7 @@ Ext.define('PVE.qemu.CDInputPanel', {
     },
 
     setVMConfig: function(vmconfig) {
-	var me = this;
+	let me = this;
 
 	if (me.bussel) {
 	    me.bussel.setVMConfig(vmconfig, 'cdrom');
@@ -34,16 +34,16 @@ Ext.define('PVE.qemu.CDInputPanel', {
     },
 
     setDrive: function(drive) {
-	var me = this;
+	let me = this;
 
-	var values = {};
+	let values = {};
 	if (drive.file === 'cdrom') {
 	    values.mediaType = 'cdrom';
 	} else if (drive.file === 'none') {
 	    values.mediaType = 'none';
 	} else {
 	    values.mediaType = 'iso';
-	    var match = drive.file.match(/^([^:]+):/);
+	    let match = drive.file.match(/^([^:]+):/);
 	    if (match) {
 		values.cdstorage = match[1];
 		values.cdimage = drive.file;
@@ -56,18 +56,18 @@ Ext.define('PVE.qemu.CDInputPanel', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 
 	me.cdstoragesel.setNodename(nodename);
 	me.cdfilesel.setStorage(undefined, nodename);
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.drive = {};
 
-	var items = [];
+	let items = [];
 
 	if (!me.confid) {
 	    me.bussel = Ext.create('PVE.form.ControllerSelector', {
@@ -88,7 +88,7 @@ Ext.define('PVE.qemu.CDInputPanel', {
 			return;
 		    }
 		    me.down('field[name=cdstorage]').setDisabled(!value);
-		    var cdImageField = me.down('field[name=cdimage]');
+		    let cdImageField = me.down('field[name=cdimage]');
 		    cdImageField.setDisabled(!value);
 		    if (value) {
 			cdImageField.validate();
@@ -152,16 +152,16 @@ Ext.define('PVE.qemu.CDEdit', {
     width: 400,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
 	me.isCreate = !me.confid;
 
-	var ipanel = Ext.create('PVE.qemu.CDInputPanel', {
+	let ipanel = Ext.create('PVE.qemu.CDInputPanel', {
 	    confid: me.confid,
 	    nodename: nodename,
 	});
@@ -177,8 +177,8 @@ Ext.define('PVE.qemu.CDEdit', {
 	    success: function(response, options) {
 		ipanel.setVMConfig(response.result.data);
 		if (me.confid) {
-		    var value = response.result.data[me.confid];
-		    var drive = PVE.Parser.parseQemuDrive(me.confid, value);
+		    let value = response.result.data[me.confid];
+		    let drive = PVE.Parser.parseQemuDrive(me.confid, value);
 		    if (!drive) {
 			Ext.Msg.alert('Error', 'Unable to parse drive options');
 			me.close();
diff --git a/www/manager6/qemu/CIDriveEdit.js b/www/manager6/qemu/CIDriveEdit.js
index a9ca8bf1..90d8aa8b 100644
--- a/www/manager6/qemu/CIDriveEdit.js
+++ b/www/manager6/qemu/CIDriveEdit.js
@@ -7,10 +7,10 @@ Ext.define('PVE.qemu.CIDriveInputPanel', {
     vmconfig: {}, // used to select usused disks
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var drive = {};
-	var params = {};
+	let drive = {};
+	let params = {};
 	drive.file = values.hdstorage + ":cloudinit";
 	drive.format = values.diskformat;
 	params[values.controller + values.deviceid] = PVE.Parser.printQemuDrive(drive);
@@ -18,18 +18,18 @@ Ext.define('PVE.qemu.CIDriveInputPanel', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 	me.down('#hdstorage').setNodename(nodename);
 	me.down('#hdimage').setStorage(undefined, nodename);
     },
 
     setVMConfig: function(config) {
-	var me = this;
+	let me = this;
 	me.down('#drive').setVMConfig(config, 'cdrom');
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.drive = {};
 
@@ -61,9 +61,9 @@ Ext.define('PVE.qemu.CIDriveEdit', {
     subject: gettext('CloudInit Drive'),
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
diff --git a/www/manager6/qemu/CloudInit.js b/www/manager6/qemu/CloudInit.js
index 77ff93d4..dd283360 100644
--- a/www/manager6/qemu/CloudInit.js
+++ b/www/manager6/qemu/CloudInit.js
@@ -11,17 +11,17 @@ Ext.define('PVE.qemu.CloudInit', {
 	    dangerous: true,
 	    confirmMsg: function(rec) {
 		let view = this.up('grid');
-		var warn = gettext('Are you sure you want to remove entry {0}');
+		let warn = gettext('Are you sure you want to remove entry {0}');
 
-		var entry = rec.data.key;
-		var msg = Ext.String.format(warn, "'"
+		let entry = rec.data.key;
+		let msg = Ext.String.format(warn, "'"
 		    + view.renderKey(entry, {}, rec) + "'");
 
 		return msg;
 	    },
 	    enableFn: function(record) {
 		let view = this.up('grid');
-		var caps = Ext.state.Manager.get('GuiCap');
+		let caps = Ext.state.Manager.get('GuiCap');
 		if (view.rows[record.data.key].never_delete ||
 		    !caps.vms['VM.Config.Network']) {
 		    return false;
@@ -39,13 +39,13 @@ Ext.define('PVE.qemu.CloudInit', {
 		    return;
 		}
 
-		var id = records[0].data.key;
-		var match = id.match(/^net(\d+)$/);
+		let id = records[0].data.key;
+		let match = id.match(/^net(\d+)$/);
 		if (match) {
 		    id = 'ipconfig' + match[1];
 		}
 
-		var params = {};
+		let params = {};
 		params.delete = id;
 		Proxmox.Utils.API2Request({
 		    url: view.baseurl + '/config',
@@ -82,18 +82,18 @@ Ext.define('PVE.qemu.CloudInit', {
 	    text: gettext('Regenerate Image'),
 	    handler: function() {
 		let view = this.up('grid');
-		var eject_params = {};
-		var insert_params = {};
+		let eject_params = {};
+		let insert_params = {};
 		let disk = PVE.Parser.parseQemuDrive(view.ciDriveId, view.ciDrive);
-		var storage = '';
-		var stormatch = disk.file.match(/^([^:]+):/);
+		let storage = '';
+		let stormatch = disk.file.match(/^([^:]+):/);
 		if (stormatch) {
 		    storage = stormatch[1];
 		}
 		eject_params[view.ciDriveId] = 'none,media=cdrom';
 		insert_params[view.ciDriveId] = storage + ':cloudinit';
 
-		var failure = function(response, opts) {
+		let failure = function(response, opts) {
 		    Ext.Msg.alert('Error', response.htmlStatus);
 		};
 
@@ -126,15 +126,15 @@ Ext.define('PVE.qemu.CloudInit', {
 	if (!success || records.length < 1) {
 	    return;
 	}
-	var me = this;
-	var found;
+	let me = this;
+	let found;
 	records.forEach(function(record) {
 	    if (found) {
 		return;
 	    }
-	    var id = record.data.key;
-	    var value = record.data.value;
-	    var ciregex = new RegExp("vm-" + me.pveSelNode.data.vmid + "-cloudinit");
+	    let id = record.data.key;
+	    let value = record.data.value;
+	    let ciregex = new RegExp("vm-" + me.pveSelNode.data.vmid + "-cloudinit");
 		if (id.match(/^(ide|scsi|sata)\d+$/) && ciregex.test(value)) {
 		    found = id;
 		    me.ciDriveId = found;
@@ -152,11 +152,11 @@ Ext.define('PVE.qemu.CloudInit', {
     },
 
     renderKey: function(key, metaData, rec, rowIndex, colIndex, store) {
-	var me = this;
-	var rows = me.rows;
-	var rowdef = rows[key] || {};
+	let me = this;
+	let rows = me.rows;
+	let rowdef = rows[key] || {};
 
-	var icon = "";
+	let icon = "";
 	if (rowdef.iconCls) {
 	    icon = '<i class="' + rowdef.iconCls + '"></i> ';
 	}
@@ -165,28 +165,28 @@ Ext.define('PVE.qemu.CloudInit', {
 
     listeners: {
 	activate: function() {
-	    var me = this;
+	    let me = this;
 	    me.rstore.startUpdate();
 	},
 	itemdblclick: function() {
-	    var me = this;
+	    let me = this;
 	    me.run_editor();
 	},
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = me.pveSelNode.data.vmid;
+	let vmid = me.pveSelNode.data.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 	me.baseurl = '/api2/extjs/nodes/' + nodename + '/qemu/' + vmid;
 	me.url = me.baseurl + '/pending';
 	me.editorConfig.url = me.baseurl + '/config';
@@ -260,8 +260,8 @@ Ext.define('PVE.qemu.CloudInit', {
 		never_delete: true,
 		renderer: function(value) {
 		    value = decodeURIComponent(value);
-		    var keys = value.split('\n');
-		    var text = [];
+		    let keys = value.split('\n');
+		    let text = [];
 		    keys.forEach(function(key) {
 			if (key.length) {
 			    let res = PVE.Parser.parseSSHKey(key);
@@ -287,11 +287,11 @@ Ext.define('PVE.qemu.CloudInit', {
 		defaultValue: '',
 	    },
 	};
-	var i;
-	var ipconfig_renderer = function(value, md, record, ri, ci, store, pending) {
-	    var id = record.data.key;
-	    var match = id.match(/^net(\d+)$/);
-	    var val = '';
+	let i;
+	let ipconfig_renderer = function(value, md, record, ri, ci, store, pending) {
+	    let id = record.data.key;
+	    let match = id.match(/^net(\d+)$/);
+	    let val = '';
 	    if (match) {
 		val = me.getObjectValue('ipconfig'+match[1], '', pending);
 	    }
diff --git a/www/manager6/qemu/Config.js b/www/manager6/qemu/Config.js
index 9fe933df..20767991 100644
--- a/www/manager6/qemu/Config.js
+++ b/www/manager6/qemu/Config.js
@@ -5,33 +5,33 @@ Ext.define('PVE.qemu.Config', {
     onlineHelp: 'chapter_virtual_machines',
 
     initComponent: function() {
-        var me = this;
-	var vm = me.pveSelNode.data;
+        let me = this;
+	let vm = me.pveSelNode.data;
 
-	var nodename = vm.node;
+	let nodename = vm.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = vm.vmid;
+	let vmid = vm.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
 
-	var template = !!vm.template;
+	let template = !!vm.template;
 
-	var running = !!vm.uptime;
+	let running = !!vm.uptime;
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
-	var base_url = '/nodes/' + nodename + "/qemu/" + vmid;
+	let base_url = '/nodes/' + nodename + "/qemu/" + vmid;
 
 	me.statusStore = Ext.create('Proxmox.data.ObjectStore', {
 	    url: '/api2/json' + base_url + '/status/current',
 	    interval: 1000,
 	});
 
-	var vm_command = function(cmd, params) {
+	let vm_command = function(cmd, params) {
 	    Proxmox.Utils.API2Request({
 		params: params,
 		url: base_url + '/status/' + cmd,
@@ -43,7 +43,7 @@ Ext.define('PVE.qemu.Config', {
 	    });
 	};
 
-	var resumeBtn = Ext.create('Ext.Button', {
+	let resumeBtn = Ext.create('Ext.Button', {
 	    text: gettext('Resume'),
 	    disabled: !caps.vms['VM.PowerMgmt'],
 	    hidden: true,
@@ -53,7 +53,7 @@ Ext.define('PVE.qemu.Config', {
 	    iconCls: 'fa fa-play',
 	});
 
-	var startBtn = Ext.create('Ext.Button', {
+	let startBtn = Ext.create('Ext.Button', {
 	    text: gettext('Start'),
 	    disabled: !caps.vms['VM.PowerMgmt'] || running,
 	    hidden: template,
@@ -63,12 +63,12 @@ Ext.define('PVE.qemu.Config', {
 	    iconCls: 'fa fa-play',
 	});
 
-	var migrateBtn = Ext.create('Ext.Button', {
+	let migrateBtn = Ext.create('Ext.Button', {
 	    text: gettext('Migrate'),
 	    disabled: !caps.vms['VM.Migrate'],
 	    hidden: PVE.data.ResourceStore.getNodes().length < 2,
 	    handler: function() {
-		var win = Ext.create('PVE.window.Migrate', {
+		let win = Ext.create('PVE.window.Migrate', {
 		    vmtype: 'qemu',
 		    nodename: nodename,
 		    vmid: vmid,
@@ -78,7 +78,7 @@ Ext.define('PVE.qemu.Config', {
 	    iconCls: 'fa fa-send-o',
 	});
 
-	var moreBtn = Ext.create('Proxmox.button.Button', {
+	let moreBtn = Ext.create('Proxmox.button.Button', {
 	    text: gettext('More'),
 	    menu: {
  items: [
@@ -113,7 +113,7 @@ Ext.define('PVE.qemu.Config', {
 		    hidden: !caps.nodes['Sys.Console'],
 		    text: gettext('Manage HA'),
 		    handler: function() {
-			var ha = vm.hastate;
+			let ha = vm.hastate;
 			Ext.create('PVE.ha.VMResourceEdit', {
 			    vmid: vmid,
 			    isCreate: !ha || ha === 'unmanaged',
@@ -137,7 +137,7 @@ Ext.define('PVE.qemu.Config', {
 },
 	});
 
-	var shutdownBtn = Ext.create('PVE.button.Split', {
+	let shutdownBtn = Ext.create('PVE.button.Split', {
 	    text: gettext('Shutdown'),
 	    disabled: !caps.vms['VM.PowerMgmt'] || !running,
 	    hidden: template,
@@ -196,7 +196,7 @@ Ext.define('PVE.qemu.Config', {
 	    iconCls: 'fa fa-power-off',
 	});
 
-	var consoleBtn = Ext.create('PVE.button.ConsoleButton', {
+	let consoleBtn = Ext.create('PVE.button.ConsoleButton', {
 	    disabled: !caps.vms['VM.Console'],
 	    hidden: template,
 	    consoleType: 'kvm',
@@ -208,7 +208,7 @@ Ext.define('PVE.qemu.Config', {
 	    vmid: vmid,
 	});
 
-	var statusTxt = Ext.create('Ext.toolbar.TextItem', {
+	let statusTxt = Ext.create('Ext.toolbar.TextItem', {
 	    data: {
 		lock: undefined,
 	    },
@@ -375,18 +375,18 @@ Ext.define('PVE.qemu.Config', {
 
 	me.callParent();
 
-	var prevQMPStatus = 'unknown';
+	let prevQMPStatus = 'unknown';
         me.mon(me.statusStore, 'load', function(s, records, success) {
-	    var status;
-	    var qmpstatus;
-	    var spice = false;
-	    var xtermjs = false;
-	    var lock;
+	    let status;
+	    let qmpstatus;
+	    let spice = false;
+	    let xtermjs = false;
+	    let lock;
 
 	    if (!success) {
 		status = qmpstatus = 'unknown';
 	    } else {
-		var rec = s.data.get('status');
+		let rec = s.data.get('status');
 		status = rec ? rec.data.value : 'unknown';
 		rec = s.data.get('qmpstatus');
 		qmpstatus = rec ? rec.data.value : 'unknown';
@@ -403,7 +403,7 @@ Ext.define('PVE.qemu.Config', {
 		return;
 	    }
 
-	    var resume = ['prelaunch', 'paused', 'suspended'].indexOf(qmpstatus) !== -1;
+	    let resume = ['prelaunch', 'paused', 'suspended'].indexOf(qmpstatus) !== -1;
 
 	    if (resume || lock === 'suspended') {
 		startBtn.setVisible(false);
diff --git a/www/manager6/qemu/CreateWizard.js b/www/manager6/qemu/CreateWizard.js
index a785a882..8232113f 100644
--- a/www/manager6/qemu/CreateWizard.js
+++ b/www/manager6/qemu/CreateWizard.js
@@ -107,7 +107,7 @@ Ext.define('PVE.qemu.CreateWizard', {
 		    }
 		});
 
-		var res = PVE.Parser.printStartup({
+		let res = PVE.Parser.printStartup({
 		    order: values.order,
 		    up: values.up,
 		    down: values.down,
@@ -208,8 +208,8 @@ Ext.define('PVE.qemu.CreateWizard', {
 	    ],
 	    listeners: {
 		show: function(panel) {
-		    var kv = this.up('window').getValues();
-		    var data = [];
+		    let kv = this.up('window').getValues();
+		    let data = [];
 		    Ext.Object.each(kv, function(key, value) {
 			if (key === 'delete') { // ignore
 			    return;
@@ -217,7 +217,7 @@ Ext.define('PVE.qemu.CreateWizard', {
 			data.push({ key: key, value: value });
 		    });
 
-		    var summarystore = panel.down('grid').getStore();
+		    let summarystore = panel.down('grid').getStore();
 		    summarystore.suspendEvents();
 		    summarystore.removeAll();
 		    summarystore.add(data);
@@ -227,11 +227,11 @@ Ext.define('PVE.qemu.CreateWizard', {
 		},
 	    },
 	    onSubmit: function() {
-		var wizard = this.up('window');
-		var kv = wizard.getValues();
+		let wizard = this.up('window');
+		let kv = wizard.getValues();
 		delete kv.delete;
 
-		var nodename = kv.nodename;
+		let nodename = kv.nodename;
 		delete kv.nodename;
 
 		Proxmox.Utils.API2Request({
diff --git a/www/manager6/qemu/HDEdit.js b/www/manager6/qemu/HDEdit.js
index 4e4d6aac..d7ccb774 100644
--- a/www/manager6/qemu/HDEdit.js
+++ b/www/manager6/qemu/HDEdit.js
@@ -49,14 +49,14 @@ Ext.define('PVE.qemu.HDInputPanel', {
 		    if (!this.getView().insideWizard) {
 			return;
 		    }
-		    var vmScsiType = value ? 'virtio-scsi-single': 'virtio-scsi-pci';
+		    let vmScsiType = value ? 'virtio-scsi-single': 'virtio-scsi-pci';
 		    this.lookupReference('scsiController').setValue(vmScsiType);
 		},
 	    },
 	},
 
 	init: function(view) {
-	    var vm = this.getViewModel();
+	    let vm = this.getViewModel();
 	    if (view.isCreate) {
 		vm.set('isIncludedInBackup', true);
 	    }
@@ -68,10 +68,10 @@ Ext.define('PVE.qemu.HDInputPanel', {
     },
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var params = {};
-	var confid = me.confid || values.controller + values.deviceid;
+	let params = {};
+	let confid = me.confid || values.controller + values.deviceid;
 
 	if (me.unused) {
 	    me.drive.file = me.vmconfig[values.unusedId];
@@ -106,13 +106,13 @@ Ext.define('PVE.qemu.HDInputPanel', {
     },
 
     updateVMConfig: function(vmconfig) {
-	var me = this;
+	let me = this;
 	me.vmconfig = vmconfig;
 	me.bussel?.updateVMConfig(vmconfig);
     },
 
     setVMConfig: function(vmconfig) {
-	var me = this;
+	let me = this;
 
 	me.vmconfig = vmconfig;
 
@@ -121,7 +121,7 @@ Ext.define('PVE.qemu.HDInputPanel', {
 	    me.scsiController.setValue(vmconfig.scsihw);
 	}
 	if (me.unusedDisks) {
-	    var disklist = [];
+	    let disklist = [];
 	    Ext.Object.each(vmconfig, function(key, value) {
 		if (key.match(/^unused\d+$/)) {
 		    disklist.push([key, value]);
@@ -133,12 +133,12 @@ Ext.define('PVE.qemu.HDInputPanel', {
     },
 
     setDrive: function(drive) {
-	var me = this;
+	let me = this;
 
 	me.drive = drive;
 
-	var values = {};
-	var match = drive.file.match(/^([^:]+):/);
+	let values = {};
+	let match = drive.file.match(/^([^:]+):/);
 	if (match) {
 	    values.hdstorage = match[1];
 	}
@@ -167,7 +167,7 @@ Ext.define('PVE.qemu.HDInputPanel', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 	me.down('#hdstorage').setNodename(nodename);
 	me.down('#hdimage').setStorage(undefined, nodename);
     },
@@ -175,7 +175,7 @@ Ext.define('PVE.qemu.HDInputPanel', {
     hasAdvanced: true,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.drive = {};
 
@@ -448,18 +448,18 @@ Ext.define('PVE.qemu.HDEdit', {
     bodyPadding: 0,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var unused = me.confid && me.confid.match(/^unused\d+$/);
+	let unused = me.confid && me.confid.match(/^unused\d+$/);
 
 	me.isCreate = me.confid ? unused : true;
 
-	var ipanel = Ext.create('PVE.qemu.HDInputPanel', {
+	let ipanel = Ext.create('PVE.qemu.HDInputPanel', {
 	    confid: me.confid,
 	    nodename: nodename,
 	    unused: unused,
@@ -484,8 +484,8 @@ Ext.define('PVE.qemu.HDEdit', {
 	    success: function(response, options) {
 		ipanel.setVMConfig(response.result.data);
 		if (me.confid) {
-		    var value = response.result.data[me.confid];
-		    var drive = PVE.Parser.parseQemuDrive(me.confid, value);
+		    let value = response.result.data[me.confid];
+		    let drive = PVE.Parser.parseQemuDrive(me.confid, value);
 		    if (!drive) {
 			Ext.Msg.alert(gettext('Error'), 'Unable to parse drive options');
 			me.close();
diff --git a/www/manager6/qemu/HDEfi.js b/www/manager6/qemu/HDEfi.js
index a8ca8f56..c331bb32 100644
--- a/www/manager6/qemu/HDEfi.js
+++ b/www/manager6/qemu/HDEfi.js
@@ -9,13 +9,13 @@ Ext.define('PVE.qemu.EFIDiskInputPanel', {
     vmconfig: {}, // used to select usused disks
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.disabled) {
 	    return {};
 	}
 
-	var confid = 'efidisk0';
+	let confid = 'efidisk0';
 
 	if (values.hdimage) {
 	    me.drive.file = values.hdimage;
@@ -37,7 +37,7 @@ Ext.define('PVE.qemu.EFIDiskInputPanel', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 	me.down('#hdstorage').setNodename(nodename);
 	me.down('#hdimage').setStorage(undefined, nodename);
     },
@@ -50,7 +50,7 @@ Ext.define('PVE.qemu.EFIDiskInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.drive = {};
 
@@ -96,9 +96,9 @@ Ext.define('PVE.qemu.EFIDiskEdit', {
 
     width: 450,
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
diff --git a/www/manager6/qemu/HDResize.js b/www/manager6/qemu/HDResize.js
index f9c7290d..b11aea31 100644
--- a/www/manager6/qemu/HDResize.js
+++ b/www/manager6/qemu/HDResize.js
@@ -4,8 +4,8 @@ Ext.define('PVE.window.HDResize', {
     resizable: false,
 
     resize_disk: function(disk, size) {
-	var me = this;
-        var params = { disk: disk, size: '+' + size + 'G' };
+	let me = this;
+        let params = { disk: disk, size: '+' + size + 'G' };
 
 	Proxmox.Utils.API2Request({
 	    params: params,
@@ -22,7 +22,7 @@ Ext.define('PVE.window.HDResize', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
@@ -32,7 +32,7 @@ Ext.define('PVE.window.HDResize', {
 	    throw "no VM ID specified";
 	}
 
-	var items = [
+	let items = [
 	    {
 		xtype: 'displayfield',
 		name: 'disk',
@@ -65,16 +65,16 @@ Ext.define('PVE.window.HDResize', {
 	    items: items,
 	});
 
-	var form = me.formPanel.getForm();
+	let form = me.formPanel.getForm();
 
-	var submitBtn;
+	let submitBtn;
 
 	me.title = gettext('Resize disk');
 	submitBtn = Ext.create('Ext.Button', {
 	    text: gettext('Resize disk'),
 	    handler: function() {
 		if (form.isValid()) {
-		    var values = form.getValues();
+		    let values = form.getValues();
 		    me.resize_disk(me.disk, values.size);
 		}
 	    },
diff --git a/www/manager6/qemu/HDTPM.js b/www/manager6/qemu/HDTPM.js
index 87349aed..3c6034e4 100644
--- a/www/manager6/qemu/HDTPM.js
+++ b/www/manager6/qemu/HDTPM.js
@@ -6,13 +6,13 @@ Ext.define('PVE.qemu.TPMDiskInputPanel', {
     vmconfig: {},
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.disabled) {
 	    return {};
 	}
 
-	var confid = 'tpmstate0';
+	let confid = 'tpmstate0';
 
 	if (values.hdimage) {
 	    me.drive.file = values.hdimage;
@@ -22,13 +22,13 @@ Ext.define('PVE.qemu.TPMDiskInputPanel', {
 	}
 
 	me.drive.version = values.version;
-	var params = {};
+	let params = {};
 	params[confid] = PVE.Parser.printQemuDrive(me.drive);
 	return params;
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 	me.down('#hdstorage').setNodename(nodename);
 	me.down('#hdimage').setStorage(undefined, nodename);
     },
@@ -41,7 +41,7 @@ Ext.define('PVE.qemu.TPMDiskInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.drive = {};
 
@@ -82,9 +82,9 @@ Ext.define('PVE.qemu.TPMDiskEdit', {
 
     width: 450,
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
diff --git a/www/manager6/qemu/HardwareView.js b/www/manager6/qemu/HardwareView.js
index 6e9d03b4..5180f0aa 100644
--- a/www/manager6/qemu/HardwareView.js
+++ b/www/manager6/qemu/HardwareView.js
@@ -5,17 +5,17 @@ Ext.define('PVE.qemu.HardwareView', {
     onlineHelp: 'qm_virtual_machines_settings',
 
     renderKey: function(key, metaData, rec, rowIndex, colIndex, store) {
-	var me = this;
-	var rows = me.rows;
-	var rowdef = rows[key] || {};
-	var iconCls = rowdef.iconCls;
-	var icon = '';
-	var txt = rowdef.header || key;
+	let me = this;
+	let rows = me.rows;
+	let rowdef = rows[key] || {};
+	let iconCls = rowdef.iconCls;
+	let icon = '';
+	let txt = rowdef.header || key;
 
 	metaData.tdAttr = "valign=middle";
 
 	if (rowdef.isOnStorageBus) {
-	    var value = me.getObjectValue(key, '', false);
+	    let value = me.getObjectValue(key, '', false);
 	    if (value === '') {
 		value = me.getObjectValue(key, '', true);
 	    }
@@ -44,7 +44,7 @@ Ext.define('PVE.qemu.HardwareView', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	const { node: nodename, vmid } = me.pveSelNode.data;
 	if (!nodename) {
@@ -69,11 +69,11 @@ Ext.define('PVE.qemu.HardwareView', {
 		group: 2,
 		multiKey: ['memory', 'balloon', 'shares'],
 		renderer: function(value, metaData, record, ri, ci, store, pending) {
-		    var res = '';
+		    let res = '';
 
-		    var max = me.getObjectValue('memory', 512, pending);
-		    var balloon = me.getObjectValue('balloon', undefined, pending);
-		    var shares = me.getObjectValue('shares', undefined, pending);
+		    let max = me.getObjectValue('memory', 512, pending);
+		    let balloon = me.getObjectValue('balloon', undefined, pending);
+		    let shares = me.getObjectValue('shares', undefined, pending);
 
 		    res = Proxmox.Utils.format_size(max*1024*1024);
 
@@ -99,13 +99,13 @@ Ext.define('PVE.qemu.HardwareView', {
 		defaultValue: '1',
 		multiKey: ['sockets', 'cpu', 'cores', 'numa', 'vcpus', 'cpulimit', 'cpuunits'],
 		renderer: function(value, metaData, record, rowIndex, colIndex, store, pending) {
-		    var sockets = me.getObjectValue('sockets', 1, pending);
-		    var model = me.getObjectValue('cpu', undefined, pending);
-		    var cores = me.getObjectValue('cores', 1, pending);
-		    var numa = me.getObjectValue('numa', undefined, pending);
-		    var vcpus = me.getObjectValue('vcpus', undefined, pending);
-		    var cpulimit = me.getObjectValue('cpulimit', undefined, pending);
-		    var cpuunits = me.getObjectValue('cpuunits', undefined, pending);
+		    let sockets = me.getObjectValue('sockets', 1, pending);
+		    let model = me.getObjectValue('cpu', undefined, pending);
+		    let cores = me.getObjectValue('cores', 1, pending);
+		    let numa = me.getObjectValue('numa', undefined, pending);
+		    let vcpus = me.getObjectValue('vcpus', undefined, pending);
+		    let cpulimit = me.getObjectValue('cpulimit', undefined, pending);
+		    let cpuunits = me.getObjectValue('cpuunits', undefined, pending);
 
 		    let res = Ext.String.format(
 		        '{0} ({1} sockets, {2} cores)', sockets * cores, sockets, cores);
@@ -304,13 +304,13 @@ Ext.define('PVE.qemu.HardwareView', {
 	    header: gettext("VirtIO RNG"),
 	};
 
-	var sorterFn = function(rec1, rec2) {
-	    var v1 = rec1.data.key;
-	    var v2 = rec2.data.key;
-	    var g1 = rows[v1].group || 0;
-	    var g2 = rows[v2].group || 0;
-	    var order1 = rows[v1].order || 0;
-	    var order2 = rows[v2].order || 0;
+	let sorterFn = function(rec1, rec2) {
+	    let v1 = rec1.data.key;
+	    let v2 = rec2.data.key;
+	    let g1 = rows[v1].group || 0;
+	    let g2 = rows[v2].group || 0;
+	    let order1 = rows[v1].order || 0;
+	    let order2 = rows[v2].order || 0;
 
 	    if (g1 - g2 !== 0) {
 		return g1 - g2;
@@ -506,14 +506,14 @@ Ext.define('PVE.qemu.HardwareView', {
 		render: function(btn) {
 		    // hack: calculate the max button width on first display to prevent the whole
 		    // toolbar to move when we switch between the "Remove" and "Detach" labels
-		    var def = btn.getSize().width;
+		    let def = btn.getSize().width;
 
 		    btn.setText(btn.altText);
-		    var alt = btn.getSize().width;
+		    let alt = btn.getSize().width;
 
 		    btn.setText(btn.defaultText);
 
-		    var optimal = alt > def ? alt : def;
+		    let optimal = alt > def ? alt : def;
 		    btn.setSize({ width: optimal });
 		},
 	    },
diff --git a/www/manager6/qemu/IPConfigEdit.js b/www/manager6/qemu/IPConfigEdit.js
index 829240c2..b42f5816 100644
--- a/www/manager6/qemu/IPConfigEdit.js
+++ b/www/manager6/qemu/IPConfigEdit.js
@@ -7,7 +7,7 @@ Ext.define('PVE.qemu.IPConfigPanel', {
     vmconfig: {},
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (values.ipv4mode !== 'static') {
 	    values.ip = values.ipv4mode;
@@ -17,9 +17,9 @@ Ext.define('PVE.qemu.IPConfigPanel', {
 	    values.ip6 = values.ipv6mode;
 	}
 
-	var params = {};
+	let params = {};
 
-	var cfg = PVE.Parser.printIPConfig(values);
+	let cfg = PVE.Parser.printIPConfig(values);
 	if (cfg === '') {
 	    params.delete = [me.confid];
 	} else {
@@ -29,12 +29,12 @@ Ext.define('PVE.qemu.IPConfigPanel', {
     },
 
     setVMConfig: function(config) {
-	var me = this;
+	let me = this;
 	me.vmconfig = config;
     },
 
     setIPConfig: function(confid, data) {
-	var me = this;
+	let me = this;
 
 	me.confid = confid;
 
@@ -56,7 +56,7 @@ Ext.define('PVE.qemu.IPConfigPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.ipconfig = {};
 
@@ -196,23 +196,23 @@ Ext.define('PVE.qemu.IPConfigEdit', {
     isAdd: true,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	// convert confid from netX to ipconfigX
-	var match = me.confid.match(/^net(\d+)$/);
+	let match = me.confid.match(/^net(\d+)$/);
 	if (match) {
 	    me.netid = me.confid;
 	    me.confid = 'ipconfig' + match[1];
 	}
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
 	me.isCreate = !me.confid;
 
-	var ipanel = Ext.create('PVE.qemu.IPConfigPanel', {
+	let ipanel = Ext.create('PVE.qemu.IPConfigPanel', {
 	    confid: me.confid,
 	    netid: me.netid,
 	    nodename: nodename,
@@ -228,8 +228,8 @@ Ext.define('PVE.qemu.IPConfigEdit', {
 	me.load({
 	    success: function(response, options) {
 		me.vmconfig = response.result.data;
-		var ipconfig = {};
-		var value = me.vmconfig[me.confid];
+		let ipconfig = {};
+		let value = me.vmconfig[me.confid];
 		if (value) {
 		    ipconfig = PVE.Parser.parseIPConfig(me.confid, value);
 		    if (!ipconfig) {
diff --git a/www/manager6/qemu/KeyboardEdit.js b/www/manager6/qemu/KeyboardEdit.js
index da7b56c0..461f3c0b 100644
--- a/www/manager6/qemu/KeyboardEdit.js
+++ b/www/manager6/qemu/KeyboardEdit.js
@@ -2,7 +2,7 @@ Ext.define('PVE.qemu.KeyboardEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	Ext.applyIf(me, {
 	    subject: gettext('Keyboard Layout'),
diff --git a/www/manager6/qemu/MemoryEdit.js b/www/manager6/qemu/MemoryEdit.js
index 5e91dc9b..4723f3a1 100644
--- a/www/manager6/qemu/MemoryEdit.js
+++ b/www/manager6/qemu/MemoryEdit.js
@@ -32,9 +32,9 @@ Ext.define('PVE.qemu.MemoryInputPanel', {
     },
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var res = {};
+	let res = {};
 
 	res.memory = values.memory;
 	res.balloon = values.balloon;
@@ -55,8 +55,8 @@ Ext.define('PVE.qemu.MemoryInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
-	var labelWidth = 160;
+	let me = this;
+	let labelWidth = 160;
 
 	me.items= [
 	    {
@@ -70,8 +70,8 @@ Ext.define('PVE.qemu.MemoryInputPanel', {
 		hotplug: me.hotplug,
 		listeners: {
 		    change: function(f, value, old) {
-			var bf = me.down('field[name=balloon]');
-			var balloon = bf.getValue();
+			let bf = me.down('field[name=balloon]');
+			let balloon = bf.getValue();
 			bf.setMaxValue(value);
 			if (balloon === old) {
 			    bf.setValue(value);
@@ -96,8 +96,8 @@ Ext.define('PVE.qemu.MemoryInputPanel', {
 		allowBlank: false,
 		listeners: {
 		    change: function(f, value) {
-			var memory = me.down('field[name=memory]').getValue();
-			var shares = me.down('field[name=shares]');
+			let memory = me.down('field[name=memory]').getValue();
+			let shares = me.down('field[name=shares]');
 			shares.setDisabled(value === memory);
 		    },
 		},
@@ -124,9 +124,9 @@ Ext.define('PVE.qemu.MemoryInputPanel', {
 		fieldLabel: gettext('Ballooning Device'),
 		listeners: {
 		    change: function(f, value) {
-			var bf = me.down('field[name=balloon]');
-			var shares = me.down('field[name=shares]');
-			var memory = me.down('field[name=memory]');
+			let bf = me.down('field[name=balloon]');
+			let shares = me.down('field[name=shares]');
+			let memory = me.down('field[name=memory]');
 			bf.setDisabled(!value);
 			shares.setDisabled(!value || bf.getValue() === memory.getValue());
 		    },
@@ -149,9 +149,9 @@ Ext.define('PVE.qemu.MemoryEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var memoryhotplug;
+	let memoryhotplug;
 	if (me.hotplug) {
 	    Ext.each(me.hotplug.split(','), function(el) {
 		if (el === 'memory') {
@@ -160,7 +160,7 @@ Ext.define('PVE.qemu.MemoryEdit', {
 	    });
 	}
 
-	var ipanel = Ext.create('PVE.qemu.MemoryInputPanel', {
+	let ipanel = Ext.create('PVE.qemu.MemoryInputPanel', {
 	    hotplug: memoryhotplug,
 	});
 
@@ -176,9 +176,9 @@ Ext.define('PVE.qemu.MemoryEdit', {
 
 	me.load({
 	    success: function(response, options) {
-		var data = response.result.data;
+		let data = response.result.data;
 
-		var values = {
+		let values = {
 		    ballooning: data.balloon === 0 ? '0' : '1',
 		    shares: data.shares,
 		    memory: data.memory || '512',
diff --git a/www/manager6/qemu/Monitor.js b/www/manager6/qemu/Monitor.js
index d85018e6..889550fb 100644
--- a/www/manager6/qemu/Monitor.js
+++ b/www/manager6/qemu/Monitor.js
@@ -6,23 +6,23 @@ Ext.define('PVE.qemu.Monitor', {
     maxLines: 500,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = me.pveSelNode.data.vmid;
+	let vmid = me.pveSelNode.data.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
 
-	var history = [];
-	var histNum = -1;
-	var lines = [];
+	let history = [];
+	let histNum = -1;
+	let lines = [];
 
-	var textbox = Ext.createWidget('panel', {
+	let textbox = Ext.createWidget('panel', {
 	    region: 'center',
 	    xtype: 'panel',
 	    autoScroll: true,
@@ -31,11 +31,11 @@ Ext.define('PVE.qemu.Monitor', {
 	    bodyStyle: 'font-family: monospace;',
 	});
 
-	var scrollToEnd = function() {
-	    var el = textbox.getTargetEl();
-	    var dom = Ext.getDom(el);
+	let scrollToEnd = function() {
+	    let el = textbox.getTargetEl();
+	    let dom = Ext.getDom(el);
 
-	    var clientHeight = dom.clientHeight;
+	    let clientHeight = dom.clientHeight;
 	    // BrowserBug: clientHeight reports 0 in IE9 StrictMode
             // Instead we are using offsetHeight and hardcoding borders
             if (Ext.isIE9 && Ext.isStrict) {
@@ -44,19 +44,19 @@ Ext.define('PVE.qemu.Monitor', {
 	    dom.scrollTop = dom.scrollHeight - clientHeight;
 	};
 
-	var refresh = function() {
+	let refresh = function() {
 	    textbox.update('<pre>' + lines.join('\n') + '</pre>');
 	    scrollToEnd();
 	};
 
-	var addLine = function(line) {
+	let addLine = function(line) {
 	    lines.push(line);
 	    if (lines.length > me.maxLines) {
 		lines.shift();
 	    }
 	};
 
-	var executeCmd = function(cmd) {
+	let executeCmd = function(cmd) {
 	    addLine("# " + Ext.htmlEncode(cmd));
 	    if (cmd) {
 		history.unshift(cmd);
@@ -73,7 +73,7 @@ Ext.define('PVE.qemu.Monitor', {
 		method: 'POST',
 		waitMsgTarget: me,
 		success: function(response, opts) {
-		    var res = response.result.data;
+		    let res = response.result.data;
 		    Ext.Array.each(res.split('\n'), function(line) {
 			addLine(Ext.htmlEncode(line));
 		    });
@@ -106,13 +106,14 @@ Ext.define('PVE.qemu.Monitor', {
 			    refresh();
 			},
 			specialkey: function(f, e) {
-			    var key = e.getKey();
+			    let key = e.getKey();
 			    switch (key) {
-				case e.ENTER:
-				    var cmd = f.getValue();
+				case e.ENTER: {
+				    let cmd = f.getValue();
 				    f.setValue('');
 				    executeCmd(cmd);
 				    break;
+				}
 				case e.PAGE_UP:
 				    textbox.scrollBy(0, -0.9*textbox.getHeight(), false);
 				    break;
@@ -140,7 +141,7 @@ Ext.define('PVE.qemu.Monitor', {
 	    ],
 	    listeners: {
 		show: function() {
-		    var field = me.query('textfield[name="cmd"]')[0];
+		    let field = me.query('textfield[name="cmd"]')[0];
 		    field.focus(false, true);
 		},
 	    },
diff --git a/www/manager6/qemu/NetworkEdit.js b/www/manager6/qemu/NetworkEdit.js
index b39cffdc..54224a75 100644
--- a/www/manager6/qemu/NetworkEdit.js
+++ b/www/manager6/qemu/NetworkEdit.js
@@ -6,7 +6,7 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
     insideWizard: false,
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	me.network.model = values.model;
 	if (values.nonetwork) {
@@ -26,7 +26,7 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
 	    delete me.network.rate;
 	}
 
-	var params = {};
+	let params = {};
 
 	params[me.confid] = PVE.Parser.printQemuNetwork(me.network);
 
@@ -34,7 +34,7 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
     },
 
     setNetwork: function(confid, data) {
-	var me = this;
+	let me = this;
 
 	me.confid = confid;
 
@@ -50,13 +50,13 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
     },
 
     setNodename: function(nodename) {
-	var me = this;
+	let me = this;
 
 	me.bridgesel.setNodename(nodename);
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.network = {};
 	me.confid = 'net0';
@@ -103,7 +103,7 @@ Ext.define('PVE.qemu.NetworkInputPanel', {
 		boxLabel: gettext('No network device'),
 		listeners: {
 		    change: function(cb, value) {
-			var fields = [
+			let fields = [
 			    'disconnect',
 			    'bridge',
 			    'tag',
@@ -173,16 +173,16 @@ Ext.define('PVE.qemu.NetworkEdit', {
     isAdd: true,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
 	me.isCreate = !me.confid;
 
-	var ipanel = Ext.create('PVE.qemu.NetworkInputPanel', {
+	let ipanel = Ext.create('PVE.qemu.NetworkInputPanel', {
 	    confid: me.confid,
 	    nodename: nodename,
 	    isCreate: me.isCreate,
@@ -197,11 +197,11 @@ Ext.define('PVE.qemu.NetworkEdit', {
 
 	me.load({
 	    success: function(response, options) {
-		var i, confid;
+		let i, confid;
 		me.vmconfig = response.result.data;
 		if (!me.isCreate) {
-		    var value = me.vmconfig[me.confid];
-		    var network = PVE.Parser.parseQemuNetwork(me.confid, value);
+		    let value = me.vmconfig[me.confid];
+		    let network = PVE.Parser.parseQemuNetwork(me.confid, value);
 		    if (!network) {
 			Ext.Msg.alert(gettext('Error'), 'Unable to parse network options');
 			me.close();
diff --git a/www/manager6/qemu/OSDefaults.js b/www/manager6/qemu/OSDefaults.js
index eed9eebc..6411c9d0 100644
--- a/www/manager6/qemu/OSDefaults.js
+++ b/www/manager6/qemu/OSDefaults.js
@@ -25,7 +25,7 @@ Ext.define('PVE.qemu.OSDefaults', {
 
 	let addOS = function(settings) {
 		if (Object.prototype.hasOwnProperty.call(settings, 'parent')) {
-		    var child = Ext.clone(me[settings.parent]);
+		    let child = Ext.clone(me[settings.parent]);
 		    me[settings.pveOS] = Ext.apply(child, settings);
 		} else {
 		    throw "Could not find your genitor";
diff --git a/www/manager6/qemu/OSTypeEdit.js b/www/manager6/qemu/OSTypeEdit.js
index d9a0988e..36637af1 100644
--- a/www/manager6/qemu/OSTypeEdit.js
+++ b/www/manager6/qemu/OSTypeEdit.js
@@ -19,22 +19,22 @@ Ext.define('PVE.qemu.OSTypeInputPanel', {
 	    this.lookup('ostype').getStore().setData(PVE.Utils.kvm_ostypes[value]);
 	},
 	onOSTypeChange: function(field) {
-	    var me = this, ostype = field.getValue();
+	    let me = this, ostype = field.getValue();
 	    if (!me.getView().insideWizard) {
 		return;
 	    }
-	    var targetValues = PVE.qemu.OSDefaults.getDefaults(ostype);
+	    let targetValues = PVE.qemu.OSDefaults.getDefaults(ostype);
 
 	    me.setWidget('pveBusSelector', targetValues.busType);
 	    me.setWidget('pveNetworkCardSelector', targetValues.networkCard);
-	    var scsihw = targetValues.scsihw || '__default__';
+	    let scsihw = targetValues.scsihw || '__default__';
 	    this.getViewModel().set('current.scsihw', scsihw);
 	    this.getViewModel().set('current.ostype', ostype);
 	},
 	setWidget: function(widget, newValue) {
 	    // changing a widget is safe only if ComponentQuery.query returns us
 	    // a single value array
-	    var widgets = Ext.ComponentQuery.query('pveQemuCreateWizard ' + widget);
+	    let widgets = Ext.ComponentQuery.query('pveQemuCreateWizard ' + widget);
 	    if (widgets.length === 1) {
 		widgets[0].setValue(newValue);
 	    } else {
@@ -44,7 +44,7 @@ Ext.define('PVE.qemu.OSTypeInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
@@ -78,8 +78,8 @@ Ext.define('PVE.qemu.OSTypeInputPanel', {
 		    data: PVE.Utils.kvm_ostypes.Linux,
 		    listeners: {
 			datachanged: function(store) {
-			    var ostype = me.lookup('ostype');
-			    var old_val = ostype.getValue();
+			    let ostype = me.lookup('ostype');
+			    let old_val = ostype.getValue();
 			    if (!me.insideWizard && old_val && store.find('val', old_val) !== -1) {
 				ostype.setValue(old_val);
 			    } else {
@@ -103,14 +103,14 @@ Ext.define('PVE.qemu.OSTypeEdit', {
     items: [{ xtype: 'pveQemuOSTypePanel' }],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
 
 	me.load({
 	    success: function(response, options) {
-		var value = response.result.data.ostype || 'other';
-		var osinfo = PVE.Utils.get_kvm_osinfo(value);
+		let value = response.result.data.ostype || 'other';
+		let osinfo = PVE.Utils.get_kvm_osinfo(value);
 		me.setValues({ ostype: value, osbase: osinfo.base });
 	    },
 	});
diff --git a/www/manager6/qemu/Options.js b/www/manager6/qemu/Options.js
index a1def4bb..edc5f8c4 100644
--- a/www/manager6/qemu/Options.js
+++ b/www/manager6/qemu/Options.js
@@ -5,21 +5,21 @@ Ext.define('PVE.qemu.Options', {
     onlineHelp: 'qm_options',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var vmid = me.pveSelNode.data.vmid;
+	let vmid = me.pveSelNode.data.vmid;
 	if (!vmid) {
 	    throw "no VM ID specified";
 	}
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
-	var rows = {
+	let rows = {
 	    name: {
 		required: true,
 		defaultValue: me.pveSelNode.data.name,
@@ -38,7 +38,7 @@ Ext.define('PVE.qemu.Options', {
 			    allowBlank: true,
 			},
 			onGetValues: function(values) {
-			    var params = values;
+			    let params = values;
 			    if (values.name === undefined ||
 				values.name === null ||
 				values.name === '') {
@@ -109,14 +109,14 @@ Ext.define('PVE.qemu.Options', {
 
 		    // legacy style and fallback
 		    let i;
-		    var text = '';
-		    var bootdisk = me.getObjectValue('bootdisk', undefined, pending);
+		    let text = '';
+		    let bootdisk = me.getObjectValue('bootdisk', undefined, pending);
 		    order = boot.legacy || 'cdn';
 		    for (i = 0; i < order.length; i++) {
 			if (text) {
 			    text += ', ';
 			}
-			var sel = order.substring(i, i + 1);
+			let sel = order.substring(i, i + 1);
 			if (sel === 'c') {
 			    if (bootdisk) {
 				text += bootdisk;
@@ -343,28 +343,28 @@ Ext.define('PVE.qemu.Options', {
 	    },
 	};
 
-	var baseurl = 'nodes/' + nodename + '/qemu/' + vmid + '/config';
+	let baseurl = 'nodes/' + nodename + '/qemu/' + vmid + '/config';
 
-	var edit_btn = new Ext.Button({
+	let edit_btn = new Ext.Button({
 	    text: gettext('Edit'),
 	    disabled: true,
 	    handler: function() { me.run_editor(); },
 	});
 
-	var revert_btn = new PVE.button.PendingRevert();
+	let revert_btn = new PVE.button.PendingRevert();
 
-	var set_button_status = function() {
-	    var sm = me.getSelectionModel();
-	    var rec = sm.getSelection()[0];
+	let set_button_status = function() {
+	    let sm = me.getSelectionModel();
+	    let rec = sm.getSelection()[0];
 
 	    if (!rec) {
 		edit_btn.disable();
 		return;
 	    }
 
-	    var key = rec.data.key;
-	    var pending = rec.data.delete || me.hasPendingChanges(key);
-	    var rowdef = rows[key];
+	    let key = rec.data.key;
+	    let pending = rec.data.delete || me.hasPendingChanges(key);
+	    let rowdef = rows[key];
 
 	    edit_btn.setDisabled(!rowdef.editor);
 	    revert_btn.setDisabled(!pending);
diff --git a/www/manager6/qemu/PCIEdit.js b/www/manager6/qemu/PCIEdit.js
index 2f67aece..5dab88c5 100644
--- a/www/manager6/qemu/PCIEdit.js
+++ b/www/manager6/qemu/PCIEdit.js
@@ -4,12 +4,12 @@ Ext.define('PVE.qemu.PCIInputPanel', {
     onlineHelp: 'qm_pci_passthrough_vm_config',
 
     setVMConfig: function(vmconfig) {
-	var me = this;
+	let me = this;
 	me.vmconfig = vmconfig;
 
-	var hostpci = me.vmconfig[me.confid] || '';
+	let hostpci = me.vmconfig[me.confid] || '';
 
-	var values = PVE.Parser.parsePropertyString(hostpci, 'host');
+	let values = PVE.Parser.parsePropertyString(hostpci, 'host');
 	if (values.host) {
 	    if (!values.host.match(/^[0-9a-f]{4}:/i)) { // add optional domain
 		values.host = "0000:" + values.host;
@@ -27,7 +27,7 @@ Ext.define('PVE.qemu.PCIInputPanel', {
 	me.setValues(values);
 	if (!me.vmconfig.machine || me.vmconfig.machine.indexOf('q35') === -1) {
 	    // machine is not set to some variant of q35, so we disable pcie
-	    var pcie = me.down('field[name=pcie]');
+	    let pcie = me.down('field[name=pcie]');
 	    pcie.setDisabled(true);
 	    pcie.setBoxLabel(gettext('Q35 only'));
 	}
diff --git a/www/manager6/qemu/ProcessorEdit.js b/www/manager6/qemu/ProcessorEdit.js
index 1bed2877..476ea218 100644
--- a/www/manager6/qemu/ProcessorEdit.js
+++ b/www/manager6/qemu/ProcessorEdit.js
@@ -21,7 +21,7 @@ Ext.define('PVE.qemu.ProcessorInputPanel', {
     },
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (Array.isArray(values.delete)) {
 	    values.delete = values.delete.join(',');
@@ -41,10 +41,10 @@ Ext.define('PVE.qemu.ProcessorInputPanel', {
 
 	delete values.cputype;
 	delete values.flags;
-	var cpustring = PVE.Parser.printQemuCpu(me.cpu);
+	let cpustring = PVE.Parser.printQemuCpu(me.cpu);
 
 	// remove cputype delete request:
-	var del = values.delete;
+	let del = values.delete;
 	delete values.delete;
 	if (del) {
 	    del = del.split(',');
@@ -59,7 +59,7 @@ Ext.define('PVE.qemu.ProcessorInputPanel', {
 	    del.push('cpu');
 	}
 
-	var delarr = del.join(',');
+	let delarr = del.join(',');
 	if (delarr) {
 	    values.delete = delarr;
 	}
@@ -219,9 +219,9 @@ Ext.define('PVE.qemu.ProcessorEdit', {
     width: 700,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var ipanel = Ext.create('PVE.qemu.ProcessorInputPanel');
+	let ipanel = Ext.create('PVE.qemu.ProcessorInputPanel');
 
 	Ext.apply(me, {
 	    subject: gettext('Processors'),
@@ -232,10 +232,10 @@ Ext.define('PVE.qemu.ProcessorEdit', {
 
 	me.load({
 	    success: function(response, options) {
-		var data = response.result.data;
-		var value = data.cpu;
+		let data = response.result.data;
+		let value = data.cpu;
 		if (value) {
-		    var cpu = PVE.Parser.parseQemuCpu(value);
+		    let cpu = PVE.Parser.parseQemuCpu(value);
 		    ipanel.cpu = cpu;
 		    data.cputype = cpu.cputype;
 		    if (cpu.flags) {
diff --git a/www/manager6/qemu/RNGEdit.js b/www/manager6/qemu/RNGEdit.js
index e34e2c08..05045dd6 100644
--- a/www/manager6/qemu/RNGEdit.js
+++ b/www/manager6/qemu/RNGEdit.js
@@ -11,7 +11,7 @@ Ext.define('PVE.qemu.RNGInputPanel', {
 	    delete values.max_bytes;
 	}
 
-	var ret = PVE.Parser.printPropertyString(values);
+	let ret = PVE.Parser.printPropertyString(values);
 
 	return {
 	    rng0: ret,
@@ -103,7 +103,7 @@ Ext.define('PVE.qemu.RNGEdit', {
     }],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
 
@@ -112,7 +112,7 @@ Ext.define('PVE.qemu.RNGEdit', {
 		success: function(response) {
 		    me.vmconfig = response.result.data;
 
-		    var rng0 = me.vmconfig.rng0;
+		    let rng0 = me.vmconfig.rng0;
 		    if (rng0) {
 			me.setValues(PVE.Parser.parsePropertyString(rng0));
 		    }
diff --git a/www/manager6/qemu/SSHKey.js b/www/manager6/qemu/SSHKey.js
index f38e5fab..58621d2a 100644
--- a/www/manager6/qemu/SSHKey.js
+++ b/www/manager6/qemu/SSHKey.js
@@ -5,7 +5,7 @@ Ext.define('PVE.qemu.SSHKeyInputPanel', {
     insideWizard: false,
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 	if (values.sshkeys) {
 	    values.sshkeys.trim();
 	}
@@ -39,7 +39,7 @@ Ext.define('PVE.qemu.SSHKeyInputPanel', {
 		    Ext.Array.each(e.target.files, function(file) {
 			PVE.Utils.loadSSHKeyFromFile(file, function(res) {
 			    let keysField = view.down('#sshkeys');
-			    var old = keysField.getValue();
+			    let old = keysField.getValue();
 			    keysField.setValue(old + res);
 			});
 		    });
@@ -50,7 +50,7 @@ Ext.define('PVE.qemu.SSHKeyInputPanel', {
     ],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
 	if (!window.FileReader) {
@@ -65,9 +65,9 @@ Ext.define('PVE.qemu.SSHKeyEdit', {
     width: 800,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var ipanel = Ext.create('PVE.qemu.SSHKeyInputPanel');
+	let ipanel = Ext.create('PVE.qemu.SSHKeyInputPanel');
 
 	Ext.apply(me, {
 	    subject: gettext('SSH Keys'),
@@ -79,7 +79,7 @@ Ext.define('PVE.qemu.SSHKeyEdit', {
 	if (!me.create) {
 	    me.load({
 		success: function(response, options) {
-		    var data = response.result.data;
+		    let data = response.result.data;
 		    if (data.sshkeys) {
 			data.sshkeys = decodeURIComponent(data.sshkeys);
 			ipanel.setValues(data);
diff --git a/www/manager6/qemu/ScsiHwEdit.js b/www/manager6/qemu/ScsiHwEdit.js
index 70f09c17..09e24dcf 100644
--- a/www/manager6/qemu/ScsiHwEdit.js
+++ b/www/manager6/qemu/ScsiHwEdit.js
@@ -2,7 +2,7 @@ Ext.define('PVE.qemu.ScsiHwEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	Ext.applyIf(me, {
 	    subject: gettext('SCSI Controller Type'),
diff --git a/www/manager6/qemu/SerialEdit.js b/www/manager6/qemu/SerialEdit.js
index 6ce18ec2..e4f09186 100644
--- a/www/manager6/qemu/SerialEdit.js
+++ b/www/manager6/qemu/SerialEdit.js
@@ -4,11 +4,11 @@ Ext.define('PVE.qemu.SerialnputPanel', {
     autoComplete: false,
 
     setVMConfig: function(vmconfig) {
-	var me = this, i;
+	let me = this, i;
 	me.vmconfig = vmconfig;
 
 	for (i = 0; i < 4; i++) {
-	    var port = 'serial' + i.toString();
+	    let port = 'serial' + i.toString();
 	    if (!me.vmconfig[port]) {
 		me.down('field[name=serialid]').setValue(i);
 		break;
@@ -17,9 +17,9 @@ Ext.define('PVE.qemu.SerialnputPanel', {
     },
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var id = 'serial' + values.serialid;
+	let id = 'serial' + values.serialid;
 	delete values.serialid;
 	values[id] = 'socket';
 	return values;
@@ -57,12 +57,12 @@ Ext.define('PVE.qemu.SerialEdit', {
     subject: gettext('Serial Port'),
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	// for now create of (socket) serial port only
 	me.isCreate = true;
 
-	var ipanel = Ext.create('PVE.qemu.SerialnputPanel', {});
+	let ipanel = Ext.create('PVE.qemu.SerialnputPanel', {});
 
 	Ext.apply(me, {
 	    items: [ipanel],
diff --git a/www/manager6/qemu/Smbios1Edit.js b/www/manager6/qemu/Smbios1Edit.js
index fc159125..529497fc 100644
--- a/www/manager6/qemu/Smbios1Edit.js
+++ b/www/manager6/qemu/Smbios1Edit.js
@@ -7,9 +7,9 @@ Ext.define('PVE.qemu.Smbios1InputPanel', {
     smbios1: {},
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var params = {
+	let params = {
 	    smbios1: PVE.Parser.printQemuSmbios1(values),
 	};
 
@@ -17,7 +17,7 @@ Ext.define('PVE.qemu.Smbios1InputPanel', {
     },
 
     setSmbios1: function(data) {
-	var me = this;
+	let me = this;
 
 	me.smbios1 = data;
 
@@ -92,9 +92,9 @@ Ext.define('PVE.qemu.Smbios1Edit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var ipanel = Ext.create('PVE.qemu.Smbios1InputPanel', {});
+	let ipanel = Ext.create('PVE.qemu.Smbios1InputPanel', {});
 
 	Ext.applyIf(me, {
 	    subject: gettext('SMBIOS settings (type1)'),
@@ -107,9 +107,9 @@ Ext.define('PVE.qemu.Smbios1Edit', {
 	me.load({
 	    success: function(response, options) {
 		me.vmconfig = response.result.data;
-		var value = me.vmconfig.smbios1;
+		let value = me.vmconfig.smbios1;
 		if (value) {
-		    var data = PVE.Parser.parseQemuSmbios1(value);
+		    let data = PVE.Parser.parseQemuSmbios1(value);
 		    if (!data) {
 			Ext.Msg.alert(gettext('Error'), 'Unable to parse smbios options');
 			me.close();
diff --git a/www/manager6/qemu/SystemEdit.js b/www/manager6/qemu/SystemEdit.js
index 592c88ee..c86685aa 100644
--- a/www/manager6/qemu/SystemEdit.js
+++ b/www/manager6/qemu/SystemEdit.js
@@ -36,14 +36,14 @@ Ext.define('PVE.qemu.SystemInputPanel', {
 	xclass: 'Ext.app.ViewController',
 
 	scsihwChange: function(field, value) {
-	    var me = this;
+	    let me = this;
 	    if (me.getView().insideWizard) {
 		me.getViewModel().set('current.scsihw', value);
 	    }
 	},
 
 	biosChange: function(field, value) {
-	    var me = this;
+	    let me = this;
 	    if (me.getView().insideWizard) {
 		me.getViewModel().set('efi', value === 'ovmf');
 	    }
diff --git a/www/manager6/qemu/USBEdit.js b/www/manager6/qemu/USBEdit.js
index a2204584..ddf8d0d2 100644
--- a/www/manager6/qemu/USBEdit.js
+++ b/www/manager6/qemu/USBEdit.js
@@ -10,12 +10,12 @@ Ext.define('PVE.qemu.USBInputPanel', {
     },
 
     setVMConfig: function(vmconfig) {
-	var me = this;
+	let me = this;
 	me.vmconfig = vmconfig;
     },
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 	if (!me.confid) {
 	    for (let i = 0; i < 6; i++) {
 		let id = 'usb' + i.toString();
@@ -25,8 +25,8 @@ Ext.define('PVE.qemu.USBInputPanel', {
 		}
 	    }
 	}
-	var val = "";
-	var type = me.down('radiofield').getGroupValue();
+	let val = "";
+	let type = me.down('radiofield').getGroupValue();
 	switch (type) {
 	    case 'spice':
 		val = 'spice';
@@ -122,11 +122,11 @@ Ext.define('PVE.qemu.USBEdit', {
     subject: gettext('USB Device'),
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = !me.confid;
 
-	var ipanel = Ext.create('PVE.qemu.USBInputPanel', {
+	let ipanel = Ext.create('PVE.qemu.USBInputPanel', {
 	    confid: me.confid,
 	    pveSelNode: me.pveSelNode,
 	});
@@ -144,9 +144,9 @@ Ext.define('PVE.qemu.USBEdit', {
 		    return;
 		}
 
-		var data = response.result.data[me.confid].split(',');
-		var port, hostdevice, usb3 = false;
-		var type = 'spice';
+		let data = response.result.data[me.confid].split(',');
+		let port, hostdevice, usb3 = false;
+		let type = 'spice';
 
 		for (let i = 0; i < data.length; i++) {
 		    if (/^(host=)?(0x)?[a-zA-Z0-9]{4}:(0x)?[a-zA-Z0-9]{4}$/.test(data[i])) {
@@ -163,7 +163,7 @@ Ext.define('PVE.qemu.USBEdit', {
 			usb3 = true;
 		    }
 		}
-		var values = {
+		let values = {
 		    usb: type,
 		    hostdevice: hostdevice,
 		    port: port,
diff --git a/www/manager6/sdn/Browser.js b/www/manager6/sdn/Browser.js
index bb30cbe0..008931a2 100644
--- a/www/manager6/sdn/Browser.js
+++ b/www/manager6/sdn/Browser.js
@@ -5,21 +5,21 @@ Ext.define('PVE.sdn.Browser', {
     onlineHelp: 'chapter_pvesdn',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var sdnid = me.pveSelNode.data.sdn;
+	let sdnid = me.pveSelNode.data.sdn;
 	if (!sdnid) {
 	    throw "no sdn ID specified";
 	}
 
 	me.items = [];
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
 	Ext.apply(me, {
 	    title: Ext.String.format(gettext("Zone {0} on node {1}"),
diff --git a/www/manager6/sdn/ControllerView.js b/www/manager6/sdn/ControllerView.js
index aff3fb8d..8b46be6e 100644
--- a/www/manager6/sdn/ControllerView.js
+++ b/www/manager6/sdn/ControllerView.js
@@ -8,7 +8,7 @@ Ext.define('PVE.sdn.ControllerView', {
     stateId: 'grid-sdn-controller',
 
     createSDNControllerEditWindow: function(type, sid) {
-	var schema = PVE.Utils.sdncontrollerSchema[type];
+	let schema = PVE.Utils.sdncontrollerSchema[type];
 	if (!schema || !schema.ipanel) {
 	    throw "no editor registered for controller type: " + type;
 	}
@@ -25,9 +25,9 @@ Ext.define('PVE.sdn.ControllerView', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var store = new Ext.data.Store({
+	let store = new Ext.data.Store({
 	    model: 'pve-sdn-controller',
 	    proxy: {
 		type: 'proxmox',
diff --git a/www/manager6/sdn/Status.js b/www/manager6/sdn/Status.js
index 0fdcfda0..005d3043 100644
--- a/www/manager6/sdn/Status.js
+++ b/www/manager6/sdn/Status.js
@@ -10,7 +10,7 @@ Ext.define('PVE.sdn.Status', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.rstore = Ext.create('Proxmox.data.ObjectStore', {
 	    interval: me.interval,
diff --git a/www/manager6/sdn/StatusView.js b/www/manager6/sdn/StatusView.js
index 970aa919..fa83b0ae 100644
--- a/www/manager6/sdn/StatusView.js
+++ b/www/manager6/sdn/StatusView.js
@@ -9,7 +9,7 @@ Ext.define('PVE.sdn.StatusView', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.rstore) {
 	    throw "no rstore given";
@@ -17,13 +17,13 @@ Ext.define('PVE.sdn.StatusView', {
 
 	Proxmox.Utils.monStoreErrors(me, me.rstore);
 
-	var store = Ext.create('Proxmox.data.DiffStore', {
+	let store = Ext.create('Proxmox.data.DiffStore', {
 	    rstore: me.rstore,
 	    sortAfterUpdate: true,
 	    sorters: [{
 		sorterFn: function(rec1, rec2) {
-		    var p1 = me.sortPriority[rec1.data.type];
-		    var p2 = me.sortPriority[rec2.data.type];
+		    let p1 = me.sortPriority[rec1.data.type];
+		    let p2 = me.sortPriority[rec2.data.type];
 		    return p1 !== p2 ? p1 > p2 ? 1 : -1 : 0;
 		},
 	    }],
diff --git a/www/manager6/sdn/SubnetEdit.js b/www/manager6/sdn/SubnetEdit.js
index 154de8ef..57ce91f8 100644
--- a/www/manager6/sdn/SubnetEdit.js
+++ b/www/manager6/sdn/SubnetEdit.js
@@ -68,7 +68,7 @@ Ext.define('PVE.sdn.SubnetEdit', {
     base_url: undefined,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = me.subnet === undefined;
 
diff --git a/www/manager6/sdn/SubnetView.js b/www/manager6/sdn/SubnetView.js
index 4a8b0754..309d6495 100644
--- a/www/manager6/sdn/SubnetView.js
+++ b/www/manager6/sdn/SubnetView.js
@@ -79,7 +79,7 @@ Ext.define('PVE.sdn.SubnetView', {
 	});
 
 	let set_button_status = function() {
-	    var rec = me.selModel.getSelection()[0];
+	    let rec = me.selModel.getSelection()[0];
 
 	    if (!rec || rec.data.state === 'deleted') {
 		edit_btn.disable();
diff --git a/www/manager6/sdn/VnetEdit.js b/www/manager6/sdn/VnetEdit.js
index 0f55595f..067c4ebd 100644
--- a/www/manager6/sdn/VnetEdit.js
+++ b/www/manager6/sdn/VnetEdit.js
@@ -69,7 +69,7 @@ Ext.define('PVE.sdn.VnetEdit', {
     width: 350,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = me.vnet === undefined;
 
diff --git a/www/manager6/sdn/VnetPanel.js b/www/manager6/sdn/VnetPanel.js
index 48c09693..8cf77e89 100644
--- a/www/manager6/sdn/VnetPanel.js
+++ b/www/manager6/sdn/VnetPanel.js
@@ -7,15 +7,15 @@ Ext.define('PVE.sdn.Vnet', {
     onlineHelp: 'pvesdn_config_vnet',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var subnetview_panel = Ext.createWidget('pveSDNSubnetView', {
+	let subnetview_panel = Ext.createWidget('pveSDNSubnetView', {
 	    title: gettext('Subnets'),
 	    region: 'center',
 	    border: false,
 	});
 
-	var vnetview_panel = Ext.createWidget('pveSDNVnetView', {
+	let vnetview_panel = Ext.createWidget('pveSDNVnetView', {
 	    title: 'Vnets',
 	    region: 'west',
 	    subnetview_panel: subnetview_panel,
diff --git a/www/manager6/sdn/VnetView.js b/www/manager6/sdn/VnetView.js
index 3fd3c916..d1d91b5e 100644
--- a/www/manager6/sdn/VnetView.js
+++ b/www/manager6/sdn/VnetView.js
@@ -53,7 +53,7 @@ Ext.define('PVE.sdn.VnetView', {
 	});
 
 	let set_button_status = function() {
-	    var rec = me.selModel.getSelection()[0];
+	    let rec = me.selModel.getSelection()[0];
 
 	    if (!rec || rec.data.state === 'deleted') {
 		edit_btn.disable();
diff --git a/www/manager6/sdn/ZoneContentView.js b/www/manager6/sdn/ZoneContentView.js
index 1ea65450..db737828 100644
--- a/www/manager6/sdn/ZoneContentView.js
+++ b/www/manager6/sdn/ZoneContentView.js
@@ -15,20 +15,20 @@ Ext.define('PVE.sdn.ZoneContentView', {
 	},
     ],
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var zone = me.pveSelNode.data.sdn;
+	let zone = me.pveSelNode.data.sdn;
 	if (!zone) {
 	    throw "no zone ID specified";
 	}
 
-	var baseurl = "/nodes/" + nodename + "/sdn/zones/" + zone + "/content";
-	var store = Ext.create('Ext.data.Store', {
+	let baseurl = "/nodes/" + nodename + "/sdn/zones/" + zone + "/content";
+	let store = Ext.create('Ext.data.Store', {
 	    model: 'pve-sdnzone-content',
 	    groupField: 'content',
 	    proxy: {
@@ -41,9 +41,9 @@ Ext.define('PVE.sdn.ZoneContentView', {
 	    },
 	});
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var reload = function() {
+	let reload = function() {
 	    store.load();
 	};
 
diff --git a/www/manager6/sdn/ZoneView.js b/www/manager6/sdn/ZoneView.js
index 71890dd3..f1834c16 100644
--- a/www/manager6/sdn/ZoneView.js
+++ b/www/manager6/sdn/ZoneView.js
@@ -70,7 +70,7 @@ Ext.define('PVE.sdn.ZoneView', {
 	});
 
 	let set_button_status = function() {
-	    var rec = me.selModel.getSelection()[0];
+	    let rec = me.selModel.getSelection()[0];
 
 	    if (!rec || rec.data.state === 'deleted') {
 		edit_btn.disable();
diff --git a/www/manager6/sdn/controllers/Base.js b/www/manager6/sdn/controllers/Base.js
index fd8bd9a0..fdc77afc 100644
--- a/www/manager6/sdn/controllers/Base.js
+++ b/www/manager6/sdn/controllers/Base.js
@@ -4,7 +4,7 @@ Ext.define('PVE.panel.SDNControllerBase', {
     type: '',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -20,7 +20,7 @@ Ext.define('PVE.sdn.controllers.BaseEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = !me.controllerid;
 
@@ -32,7 +32,7 @@ Ext.define('PVE.sdn.controllers.BaseEdit', {
 	    me.method = 'PUT';
 	}
 
-	var ipanel = Ext.create(me.paneltype, {
+	let ipanel = Ext.create(me.paneltype, {
 	    type: me.type,
 	    isCreate: me.isCreate,
 	    controllerid: me.controllerid,
@@ -49,8 +49,8 @@ Ext.define('PVE.sdn.controllers.BaseEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
-		    var ctypes = values.content || '';
+		    let values = response.result.data;
+		    let ctypes = values.content || '';
 
 		    values.content = ctypes.split(',');
 
diff --git a/www/manager6/sdn/controllers/BgpEdit.js b/www/manager6/sdn/controllers/BgpEdit.js
index ce5ef93d..c9839bc4 100644
--- a/www/manager6/sdn/controllers/BgpEdit.js
+++ b/www/manager6/sdn/controllers/BgpEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.controllers.BgpInputPanel', {
     onlineHelp: 'pvesdn_controller_plugin_evpn',
 
     onGetValues: function(values) {
-        var me = this;
+        let me = this;
 
         if (me.isCreate) {
             values.type = me.type;
@@ -17,7 +17,7 @@ Ext.define('PVE.sdn.controllers.BgpInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/sdn/controllers/EvpnEdit.js b/www/manager6/sdn/controllers/EvpnEdit.js
index d04b3e54..347ede20 100644
--- a/www/manager6/sdn/controllers/EvpnEdit.js
+++ b/www/manager6/sdn/controllers/EvpnEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.controllers.EvpnInputPanel', {
     onlineHelp: 'pvesdn_controller_plugin_evpn',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/sdn/dns/Base.js b/www/manager6/sdn/dns/Base.js
index 6ce97b0c..5ba20e8d 100644
--- a/www/manager6/sdn/dns/Base.js
+++ b/www/manager6/sdn/dns/Base.js
@@ -4,7 +4,7 @@ Ext.define('PVE.panel.SDNDnsBase', {
     type: '',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.panel.SDNDnsBase', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
     },
@@ -26,7 +26,7 @@ Ext.define('PVE.sdn.dns.BaseEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = !me.dns;
 
@@ -38,7 +38,7 @@ Ext.define('PVE.sdn.dns.BaseEdit', {
 	    me.method = 'PUT';
 	}
 
-	var ipanel = Ext.create(me.paneltype, {
+	let ipanel = Ext.create(me.paneltype, {
 	    type: me.type,
 	    isCreate: me.isCreate,
 	    dns: me.dns,
@@ -55,8 +55,8 @@ Ext.define('PVE.sdn.dns.BaseEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
-		    var ctypes = values.content || '';
+		    let values = response.result.data;
+		    let ctypes = values.content || '';
 
 		    values.content = ctypes.split(',');
 
diff --git a/www/manager6/sdn/dns/PowerdnsEdit.js b/www/manager6/sdn/dns/PowerdnsEdit.js
index f35b89af..9e167fe9 100644
--- a/www/manager6/sdn/dns/PowerdnsEdit.js
+++ b/www/manager6/sdn/dns/PowerdnsEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.dns.PowerdnsInputPanel', {
     onlineHelp: 'pvesdn_dns_plugin_powerdns',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.sdn.dns.PowerdnsInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/sdn/ipams/Base.js b/www/manager6/sdn/ipams/Base.js
index 2fb82fbf..6ea7df99 100644
--- a/www/manager6/sdn/ipams/Base.js
+++ b/www/manager6/sdn/ipams/Base.js
@@ -4,7 +4,7 @@ Ext.define('PVE.panel.SDNIpamBase', {
     type: '',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.panel.SDNIpamBase', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.callParent();
     },
@@ -26,7 +26,7 @@ Ext.define('PVE.sdn.ipams.BaseEdit', {
     extend: 'Proxmox.window.Edit',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = !me.ipam;
 
@@ -38,7 +38,7 @@ Ext.define('PVE.sdn.ipams.BaseEdit', {
 	    me.method = 'PUT';
 	}
 
-	var ipanel = Ext.create(me.paneltype, {
+	let ipanel = Ext.create(me.paneltype, {
 	    type: me.type,
 	    isCreate: me.isCreate,
 	    ipam: me.ipam,
@@ -55,8 +55,8 @@ Ext.define('PVE.sdn.ipams.BaseEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
-		    var ctypes = values.content || '';
+		    let values = response.result.data;
+		    let ctypes = values.content || '';
 
 		    values.content = ctypes.split(',');
 
diff --git a/www/manager6/sdn/ipams/NetboxEdit.js b/www/manager6/sdn/ipams/NetboxEdit.js
index 2133b48c..4627cd36 100644
--- a/www/manager6/sdn/ipams/NetboxEdit.js
+++ b/www/manager6/sdn/ipams/NetboxEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.ipams.NetboxInputPanel', {
     onlineHelp: 'pvesdn_ipam_plugin_netbox',
 
     onGetValues: function(values) {
-        var me = this;
+        let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.sdn.ipams.NetboxInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/sdn/ipams/PVEIpamEdit.js b/www/manager6/sdn/ipams/PVEIpamEdit.js
index 783bbdb9..b45edd65 100644
--- a/www/manager6/sdn/ipams/PVEIpamEdit.js
+++ b/www/manager6/sdn/ipams/PVEIpamEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.ipams.PVEIpamInputPanel', {
     onlineHelp: 'pvesdn_ipam_plugin_pveipam',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.sdn.ipams.PVEIpamInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/sdn/ipams/PhpIpamEdit.js b/www/manager6/sdn/ipams/PhpIpamEdit.js
index 8726e0c8..1182aa4f 100644
--- a/www/manager6/sdn/ipams/PhpIpamEdit.js
+++ b/www/manager6/sdn/ipams/PhpIpamEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.ipams.PhpIpamInputPanel', {
     onlineHelp: 'pvesdn_ipam_plugin_phpipam',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.sdn.ipams.PhpIpamInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/sdn/zones/Base.js b/www/manager6/sdn/zones/Base.js
index 347889c0..c670fd33 100644
--- a/www/manager6/sdn/zones/Base.js
+++ b/www/manager6/sdn/zones/Base.js
@@ -4,7 +4,7 @@ Ext.define('PVE.panel.SDNZoneBase', {
     type: '',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.panel.SDNZoneBase', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.advancedItems = [
 	    {
@@ -59,7 +59,7 @@ Ext.define('PVE.sdn.zones.BaseEdit', {
     width: 400,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.isCreate = !me.zone;
 
@@ -71,7 +71,7 @@ Ext.define('PVE.sdn.zones.BaseEdit', {
 	    me.method = 'PUT';
 	}
 
-	var ipanel = Ext.create(me.paneltype, {
+	let ipanel = Ext.create(me.paneltype, {
 	    type: me.type,
 	    isCreate: me.isCreate,
 	    zone: me.zone,
@@ -88,8 +88,8 @@ Ext.define('PVE.sdn.zones.BaseEdit', {
 	if (!me.isCreate) {
 	    me.load({
 		success: function(response, options) {
-		    var values = response.result.data;
-		    var ctypes = values.content || '';
+		    let values = response.result.data;
+		    let ctypes = values.content || '';
 
 		    values.content = ctypes.split(',');
 
diff --git a/www/manager6/sdn/zones/EvpnEdit.js b/www/manager6/sdn/zones/EvpnEdit.js
index f1314ad5..aefbe84b 100644
--- a/www/manager6/sdn/zones/EvpnEdit.js
+++ b/www/manager6/sdn/zones/EvpnEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.zones.EvpnInputPanel', {
     onlineHelp: 'pvesdn_zone_plugin_evpn',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -36,7 +36,7 @@ Ext.define('PVE.sdn.zones.EvpnInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/sdn/zones/SimpleEdit.js b/www/manager6/sdn/zones/SimpleEdit.js
index 56df7952..1385616f 100644
--- a/www/manager6/sdn/zones/SimpleEdit.js
+++ b/www/manager6/sdn/zones/SimpleEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.zones.SimpleInputPanel', {
     onlineHelp: 'pvesdn_zone_plugin_simple',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.sdn.zones.SimpleInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
         me.items = [
            {
diff --git a/www/manager6/sdn/zones/VlanEdit.js b/www/manager6/sdn/zones/VlanEdit.js
index 93d2bede..fac122ad 100644
--- a/www/manager6/sdn/zones/VlanEdit.js
+++ b/www/manager6/sdn/zones/VlanEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.zones.VlanInputPanel', {
     onlineHelp: 'pvesdn_zone_plugin_vlan',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -16,7 +16,7 @@ Ext.define('PVE.sdn.zones.VlanInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
         me.items = [
            {
diff --git a/www/manager6/sdn/zones/VxlanEdit.js b/www/manager6/sdn/zones/VxlanEdit.js
index 41cc7e68..03556496 100644
--- a/www/manager6/sdn/zones/VxlanEdit.js
+++ b/www/manager6/sdn/zones/VxlanEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.sdn.zones.VxlanInputPanel', {
     onlineHelp: 'pvesdn_zone_plugin_vxlan',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.type = me.type;
@@ -18,7 +18,7 @@ Ext.define('PVE.sdn.zones.VxlanInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/storage/BackupView.js b/www/manager6/storage/BackupView.js
index 2328c0fc..95c971fc 100644
--- a/www/manager6/storage/BackupView.js
+++ b/www/manager6/storage/BackupView.js
@@ -6,23 +6,23 @@ Ext.define('PVE.storage.BackupView', {
     showColumns: ['name', 'notes', 'protected', 'date', 'format', 'size'],
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.nodename = me.pveSelNode.data.node;
+	let nodename = me.nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var storage = me.storage = me.pveSelNode.data.storage;
+	let storage = me.storage = me.pveSelNode.data.storage;
 	if (!storage) {
 	    throw "no storage ID specified";
 	}
 
 	me.content = 'backup';
 
-	var sm = me.sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = me.sm = Ext.create('Ext.selection.RowModel', {});
 
-	var reload = function() {
+	let reload = function() {
 	    me.store.load();
 	};
 
@@ -85,7 +85,7 @@ Ext.define('PVE.storage.BackupView', {
 		selModel: sm,
 		disabled: true,
 		handler: function(b, e, rec) {
-		    var vmtype;
+		    let vmtype;
 		    if (PVE.Utils.volume_is_qemu_backup(rec.data.volid, rec.data.format)) {
 			vmtype = 'qemu';
 		    } else if (PVE.Utils.volume_is_lxc_backup(rec.data.volid, rec.data.format)) {
@@ -94,7 +94,7 @@ Ext.define('PVE.storage.BackupView', {
 			return;
 		    }
 
-		    var win = Ext.create('PVE.window.Restore', {
+		    let win = Ext.create('PVE.window.Restore', {
 			nodename: nodename,
 			volid: rec.data.volid,
 			volidText: PVE.Utils.render_storage_content(rec.data.volid, {}, rec),
@@ -134,7 +134,7 @@ Ext.define('PVE.storage.BackupView', {
 		disabled: true,
 		selModel: sm,
 		handler: function(b, e, rec) {
-		    var win = Ext.create('PVE.window.BackupConfig', {
+		    let win = Ext.create('PVE.window.BackupConfig', {
 			volume: rec.data.volid,
 			pveSelNode: me.pveSelNode,
 		    });
diff --git a/www/manager6/storage/Browser.js b/www/manager6/storage/Browser.js
index 1916ff6a..35343eda 100644
--- a/www/manager6/storage/Browser.js
+++ b/www/manager6/storage/Browser.js
@@ -5,14 +5,14 @@ Ext.define('PVE.storage.Browser', {
     onlineHelp: 'chapter_storage',
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var storeid = me.pveSelNode.data.storage;
+	let storeid = me.pveSelNode.data.storage;
 	if (!storeid) {
 	    throw "no storage ID specified";
 	}
@@ -27,7 +27,7 @@ Ext.define('PVE.storage.Browser', {
 	    },
 	];
 
-	var caps = Ext.state.Manager.get('GuiCap');
+	let caps = Ext.state.Manager.get('GuiCap');
 
 	Ext.apply(me, {
 	    title: Ext.String.format(
diff --git a/www/manager6/storage/CIFSEdit.js b/www/manager6/storage/CIFSEdit.js
index 71415401..5c172bd1 100644
--- a/www/manager6/storage/CIFSEdit.js
+++ b/www/manager6/storage/CIFSEdit.js
@@ -14,13 +14,13 @@ Ext.define('PVE.storage.CIFSScan', {
     doRawQuery: Ext.emptyFn,
 
     onTriggerClick: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.queryCaching || me.lastQuery !== me.cifsServer) {
 	    me.store.removeAll();
 	}
 
-	var params = {};
+	let params = {};
 	if (me.cifsUsername) {
 	    params.username = me.cifsUsername;
 	}
@@ -73,7 +73,7 @@ Ext.define('PVE.storage.CIFSScan', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    me.nodename = 'localhost';
@@ -134,7 +134,7 @@ Ext.define('PVE.storage.CIFSInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.column1 = [
 	    {
@@ -146,7 +146,7 @@ Ext.define('PVE.storage.CIFSInputPanel', {
 		listeners: {
 		    change: function(f, value) {
 			if (me.isCreate) {
-			    var exportField = me.down('field[name=share]');
+			    let exportField = me.down('field[name=share]');
 			    exportField.setServer(value);
 			}
 		    },
@@ -163,7 +163,7 @@ Ext.define('PVE.storage.CIFSInputPanel', {
 			if (!me.isCreate) {
 			    return;
 			}
-			var exportField = me.down('field[name=share]');
+			let exportField = me.down('field[name=share]');
 			exportField.setUsername(value);
 		    },
 		},
diff --git a/www/manager6/storage/CephFSEdit.js b/www/manager6/storage/CephFSEdit.js
index 6a95a00a..b9a11437 100644
--- a/www/manager6/storage/CephFSEdit.js
+++ b/www/manager6/storage/CephFSEdit.js
@@ -18,7 +18,7 @@ Ext.define('PVE.storage.CephFSInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    me.nodename = 'localhost';
diff --git a/www/manager6/storage/ContentView.js b/www/manager6/storage/ContentView.js
index 2761b48e..0bb07db1 100644
--- a/www/manager6/storage/ContentView.js
+++ b/www/manager6/storage/ContentView.js
@@ -8,7 +8,7 @@ Ext.define('PVE.storage.ContentView', {
 	loadMask: false,
     },
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    me.nodename = me.pveSelNode.data.node;
@@ -26,7 +26,7 @@ Ext.define('PVE.storage.ContentView', {
 	}
 	const storage = me.storage;
 
-	var content = me.content;
+	let content = me.content;
 	if (!content) {
 	    throw "no content type specified";
 	}
diff --git a/www/manager6/storage/DirEdit.js b/www/manager6/storage/DirEdit.js
index 7e9ec44d..8d60af5f 100644
--- a/www/manager6/storage/DirEdit.js
+++ b/www/manager6/storage/DirEdit.js
@@ -4,7 +4,7 @@ Ext.define('PVE.storage.DirInputPanel', {
     onlineHelp: 'storage_directory',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.column1 = [
 	    {
diff --git a/www/manager6/storage/GlusterFsEdit.js b/www/manager6/storage/GlusterFsEdit.js
index 8155d9c2..86eb4c90 100644
--- a/www/manager6/storage/GlusterFsEdit.js
+++ b/www/manager6/storage/GlusterFsEdit.js
@@ -16,7 +16,7 @@ Ext.define('PVE.storage.GlusterFsScan', {
     },
 
     onTriggerClick: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.queryCaching || me.lastQuery !== me.glusterServer) {
 	    me.store.removeAll();
@@ -28,19 +28,19 @@ Ext.define('PVE.storage.GlusterFsScan', {
     },
 
     setServer: function(server) {
-	var me = this;
+	let me = this;
 
 	me.glusterServer = server;
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    me.nodename = 'localhost';
 	}
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    fields: ['volname'],
 	    proxy: {
 		type: 'proxmox',
@@ -64,7 +64,7 @@ Ext.define('PVE.storage.GlusterFsInputPanel', {
     onlineHelp: 'storage_glusterfs',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.column1 = [
 	    {
@@ -76,7 +76,7 @@ Ext.define('PVE.storage.GlusterFsInputPanel', {
 		listeners: {
 		    change: function(f, value) {
 			if (me.isCreate) {
-			    var volumeField = me.down('field[name=volume]');
+			    let volumeField = me.down('field[name=volume]');
 			    volumeField.setServer(value);
 			    volumeField.setValue('');
 			}
diff --git a/www/manager6/storage/ImageView.js b/www/manager6/storage/ImageView.js
index 69517b5e..e38fd8b8 100644
--- a/www/manager6/storage/ImageView.js
+++ b/www/manager6/storage/ImageView.js
@@ -4,14 +4,14 @@ Ext.define('PVE.storage.ImageView', {
     alias: 'widget.pveStorageImageView',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.nodename = me.pveSelNode.data.node;
+	let nodename = me.nodename = me.pveSelNode.data.node;
 	if (!me.nodename) {
 	    throw "no node name specified";
 	}
 
-	var storage = me.storage = me.pveSelNode.data.storage;
+	let storage = me.storage = me.pveSelNode.data.storage;
 	if (!me.storage) {
 	    throw "no storage ID specified";
 	}
@@ -20,9 +20,9 @@ Ext.define('PVE.storage.ImageView', {
 	    throw "content needs to be either 'images' or 'rootdir'";
 	}
 
-	var sm = me.sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = me.sm = Ext.create('Ext.selection.RowModel', {});
 
-	var reload = function() {
+	let reload = function() {
 	    me.store.load();
 	};
 
@@ -34,17 +34,17 @@ Ext.define('PVE.storage.ImageView', {
 		disabled: true,
 		handler: function(btn, event, rec) {
 		    let url = `/nodes/${nodename}/storage/${storage}/content/${rec.data.volid}`;
-		    var vmid = rec.data.vmid;
+		    let vmid = rec.data.vmid;
 
-		    var store = PVE.data.ResourceStore;
+		    let store = PVE.data.ResourceStore;
 
 		    if (vmid && store.findVMID(vmid)) {
-			var guest_node = store.guestNode(vmid);
-			var storage_path = 'storage/' + nodename + '/' + storage;
+			let guest_node = store.guestNode(vmid);
+			let storage_path = 'storage/' + nodename + '/' + storage;
 
 			// allow to delete local backed images if a VMID exists on another node.
 			if (store.storageIsShared(storage_path) || guest_node === nodename) {
-			    var msg = Ext.String.format(
+			    let msg = Ext.String.format(
 				gettext("Cannot remove image, a guest with VMID '{0}' exists!"), vmid);
 			    msg += '<br />' + gettext("You can delete the image from the guest's hardware pane");
 
@@ -56,7 +56,7 @@ Ext.define('PVE.storage.ImageView', {
 			    return;
 			}
 		    }
-		    var win = Ext.create('Proxmox.window.SafeDestroy', {
+		    let win = Ext.create('Proxmox.window.SafeDestroy', {
 			title: Ext.String.format(gettext("Destroy '{0}'"), rec.data.volid),
 			showProgress: true,
 			url: url,
diff --git a/www/manager6/storage/NFSEdit.js b/www/manager6/storage/NFSEdit.js
index 202c7de0..85fe7dcf 100644
--- a/www/manager6/storage/NFSEdit.js
+++ b/www/manager6/storage/NFSEdit.js
@@ -16,7 +16,7 @@ Ext.define('PVE.storage.NFSScan', {
     },
 
     onTriggerClick: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.queryCaching || me.lastQuery !== me.nfsServer) {
 	    me.store.removeAll();
@@ -28,19 +28,19 @@ Ext.define('PVE.storage.NFSScan', {
     },
 
     setServer: function(server) {
-	var me = this;
+	let me = this;
 
 	me.nfsServer = server;
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    me.nodename = 'localhost';
 	}
 
-	var store = Ext.create('Ext.data.Store', {
+	let store = Ext.create('Ext.data.Store', {
 	    fields: ['path', 'options'],
 	    proxy: {
 		type: 'proxmox',
@@ -66,12 +66,12 @@ Ext.define('PVE.storage.NFSInputPanel', {
     options: [],
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var i;
-	var res = [];
+	let i;
+	let res = [];
 	for (i = 0; i < me.options.length; i++) {
-	    var item = me.options[i];
+	    let item = me.options[i];
 	    if (!item.match(/^vers=(.*)$/)) {
 		res.push(item);
 	    }
@@ -92,11 +92,11 @@ Ext.define('PVE.storage.NFSInputPanel', {
     },
 
     setValues: function(values) {
-	var me = this;
+	let me = this;
 	if (values.options) {
 	    me.options = values.options.split(',');
 	    me.options.forEach(function(item) {
-		var match = item.match(/^vers=(.*)$/);
+		let match = item.match(/^vers=(.*)$/);
 		if (match) {
 		    values.nfsversion = match[1];
 		}
@@ -106,7 +106,7 @@ Ext.define('PVE.storage.NFSInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 
 	me.column1 = [
@@ -119,7 +119,7 @@ Ext.define('PVE.storage.NFSInputPanel', {
 		listeners: {
 		    change: function(f, value) {
 			if (me.isCreate) {
-			    var exportField = me.down('field[name=export]');
+			    let exportField = me.down('field[name=export]');
 			    exportField.setServer(value);
 			    exportField.setValue('');
 			}
diff --git a/www/manager6/storage/PBSEdit.js b/www/manager6/storage/PBSEdit.js
index d880308c..76981eda 100644
--- a/www/manager6/storage/PBSEdit.js
+++ b/www/manager6/storage/PBSEdit.js
@@ -469,7 +469,7 @@ Ext.define('PVE.storage.PBSInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.column1 = [
 	    {
diff --git a/www/manager6/storage/RBDEdit.js b/www/manager6/storage/RBDEdit.js
index 15fc1304..0d7c0124 100644
--- a/www/manager6/storage/RBDEdit.js
+++ b/www/manager6/storage/RBDEdit.js
@@ -45,23 +45,23 @@ Ext.define('PVE.storage.Ceph.Controller', {
 	if (field && !newVal && oldVal) {
 	    return;
 	}
-	var view = this.getView();
-	var vm = this.getViewModel();
+	let view = this.getView();
+	let vm = this.getViewModel();
 	if (!(view.isCreate || vm.get('pveceph'))) {
 	    return; // only query on create or if editing a pveceph store
 	}
 
-	var monhostField = this.lookupReference('monhost');
+	let monhostField = this.lookupReference('monhost');
 
 	Proxmox.Utils.API2Request({
 	    url: '/api2/json/nodes/localhost/ceph/mon',
 	    method: 'GET',
 	    scope: this,
 	    callback: function(options, success, response) {
-		var data = response.result.data;
+		let data = response.result.data;
 		if (response.status === 200) {
 		    if (data.length > 0) {
-			var monhost = Ext.Array.pluck(data, 'name').sort().join(',');
+			let monhost = Ext.Array.pluck(data, 'name').sort().join(',');
 			monhostField.setValue(monhost);
 			monhostField.resetOriginalValue();
 			if (view.isCreate) {
@@ -102,7 +102,7 @@ Ext.define('PVE.storage.RBDInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    me.nodename = 'localhost';
diff --git a/www/manager6/storage/Summary.js b/www/manager6/storage/Summary.js
index bc61139d..131e9dc7 100644
--- a/www/manager6/storage/Summary.js
+++ b/www/manager6/storage/Summary.js
@@ -17,24 +17,24 @@ Ext.define('PVE.storage.Summary', {
 	columnWidth: 1,
     },
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var storage = me.pveSelNode.data.storage;
+	let storage = me.pveSelNode.data.storage;
 	if (!storage) {
 	    throw "no storage ID specified";
 	}
 
-	var rstore = Ext.create('Proxmox.data.ObjectStore', {
+	let rstore = Ext.create('Proxmox.data.ObjectStore', {
 	    url: "/api2/json/nodes/" + nodename + "/storage/" + storage + "/status",
 	    interval: 1000,
 	});
 
-	var rrdstore = Ext.create('Proxmox.data.RRDStore', {
+	let rrdstore = Ext.create('Proxmox.data.RRDStore', {
 	    rrdurl: "/api2/json/nodes/" + nodename + "/storage/" + storage + "/rrddata",
 	    model: 'pve-rrd-storage',
 	});
diff --git a/www/manager6/storage/TemplateView.js b/www/manager6/storage/TemplateView.js
index a2a05e00..3b3064d0 100644
--- a/www/manager6/storage/TemplateView.js
+++ b/www/manager6/storage/TemplateView.js
@@ -9,14 +9,14 @@ Ext.define('PVE.grid.TemplateSelector', {
 	trackOver: false,
     },
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
 	}
 
-	var baseurl = "/nodes/" + me.nodename + "/aplinfo";
-	var store = new Ext.data.Store({
+	let baseurl = "/nodes/" + me.nodename + "/aplinfo";
+	let store = new Ext.data.Store({
 	    model: 'pve-aplinfo',
 	    groupField: 'section',
 	    proxy: {
@@ -25,13 +25,13 @@ Ext.define('PVE.grid.TemplateSelector', {
 	    },
 	});
 
-	var sm = Ext.create('Ext.selection.RowModel', {});
+	let sm = Ext.create('Ext.selection.RowModel', {});
 
-	var groupingFeature = Ext.create('Ext.grid.feature.Grouping', {
+	let groupingFeature = Ext.create('Ext.grid.feature.Grouping', {
             groupHeaderTpl: '{[ "Section: " + values.name ]} ({rows.length} Item{[values.rows.length > 1 ? "s" : ""]})',
 	});
 
-	var reload = function() {
+	let reload = function() {
 	    store.load();
 	};
 
@@ -50,7 +50,7 @@ Ext.define('PVE.grid.TemplateSelector', {
 		    listeners: {
 			buffer: 500,
 			keyup: function(field) {
-			    var value = field.getValue().toLowerCase();
+			    let value = field.getValue().toLowerCase();
 			    store.clearFilter(true);
 			    store.filterBy(function(rec) {
 				return rec.data.package.toLowerCase().indexOf(value) !== -1 ||
@@ -113,17 +113,17 @@ Ext.define('PVE.storage.TemplateDownload', {
     width: 900,
     height: 600,
     initComponent: function() {
-        var me = this;
+        let me = this;
 
-	var grid = Ext.create('PVE.grid.TemplateSelector', {
+	let grid = Ext.create('PVE.grid.TemplateSelector', {
 	    border: false,
 	    scrollable: true,
 	    nodename: me.nodename,
 	});
 
-	var sm = grid.getSelectionModel();
+	let sm = grid.getSelectionModel();
 
-	var submitBtn = Ext.create('Proxmox.button.Button', {
+	let submitBtn = Ext.create('Proxmox.button.Button', {
 	    text: gettext('Download'),
 	    disabled: true,
 	    selModel: sm,
@@ -139,7 +139,7 @@ Ext.define('PVE.storage.TemplateDownload', {
 			Ext.Msg.alert(gettext('Error'), response.htmlStatus);
 		    },
 		    success: function(response, options) {
-			var upid = response.result.data;
+			let upid = response.result.data;
 
 			Ext.create('Proxmox.window.TaskViewer', {
 			    upid: upid,
@@ -169,29 +169,29 @@ Ext.define('PVE.storage.TemplateView', {
     alias: 'widget.pveStorageTemplateView',
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var nodename = me.nodename = me.pveSelNode.data.node;
+	let nodename = me.nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
 
-	var storage = me.storage = me.pveSelNode.data.storage;
+	let storage = me.storage = me.pveSelNode.data.storage;
 	if (!storage) {
 	    throw "no storage ID specified";
 	}
 
 	me.content = 'vztmpl';
 
-	var reload = function() {
+	let reload = function() {
 	    me.store.load();
 	};
 
-	var templateButton = Ext.create('Proxmox.button.Button', {
+	let templateButton = Ext.create('Proxmox.button.Button', {
 	    itemId: 'tmpl-btn',
 	    text: gettext('Templates'),
 	    handler: function() {
-		var win = Ext.create('PVE.storage.TemplateDownload', {
+		let win = Ext.create('PVE.storage.TemplateDownload', {
 		    nodename: nodename,
 		    storage: storage,
 		    reloadGrid: reload,
diff --git a/www/manager6/storage/ZFSEdit.js b/www/manager6/storage/ZFSEdit.js
index 0c5a3ceb..c1baedb6 100644
--- a/www/manager6/storage/ZFSEdit.js
+++ b/www/manager6/storage/ZFSEdit.js
@@ -18,7 +18,7 @@ Ext.define('PVE.storage.ZFSInputPanel', {
 	    },
 	},
 	changeISCSIProvider: function(f, newVal, oldVal) {
-	    var vm = this.getViewModel();
+	    let vm = this.getViewModel();
 	    vm.set('isLIO', newVal === 'LIO');
 	    vm.set('isComstar', newVal === 'comstar');
 	    vm.set('hasWriteCacheOption', newVal === 'comstar' || newVal === 'istgt');
@@ -26,7 +26,7 @@ Ext.define('PVE.storage.ZFSInputPanel', {
     },
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
 	if (me.isCreate) {
 	    values.content = 'images';
@@ -44,7 +44,7 @@ Ext.define('PVE.storage.ZFSInputPanel', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.column1 = [
 	    {
diff --git a/www/manager6/tree/SnapshotTree.js b/www/manager6/tree/SnapshotTree.js
index 97268072..ab576d44 100644
--- a/www/manager6/tree/SnapshotTree.js
+++ b/www/manager6/tree/SnapshotTree.js
@@ -83,8 +83,8 @@ Ext.define('PVE.guest.SnapshotTree', {
 		    Ext.Msg.alert(gettext('Error'), response.htmlStatus);
 		},
 		success: function(response, options) {
-		    var upid = response.result.data;
-		    var win = Ext.create('Proxmox.window.TaskProgress', { upid: upid });
+		    let upid = response.result.data;
+		    let win = Ext.create('Proxmox.window.TaskProgress', { upid: upid });
 		    win.show();
 		},
 	    });
@@ -124,9 +124,9 @@ Ext.define('PVE.guest.SnapshotTree', {
 			return;
 		    }
 		    Proxmox.Utils.setErrorMask(view, false);
-		    var digest = 'invalid';
-		    var idhash = {};
-		    var root = { name: '__root', expanded: true, children: [] };
+		    let digest = 'invalid';
+		    let idhash = {};
+		    let root = { name: '__root', expanded: true, children: [] };
 		    Ext.Array.each(response.result.data, function(item) {
 			item.leaf = true;
 			item.children = [];
@@ -145,7 +145,7 @@ Ext.define('PVE.guest.SnapshotTree', {
 
 			Ext.Array.each(response.result.data, function(item) {
 			    if (item.parent && idhash[item.parent]) {
-				var parent_item = idhash[item.parent];
+				let parent_item = idhash[item.parent];
 				parent_item.children.push(item);
 				parent_item.leaf = false;
 				parent_item.expanded = true;
diff --git a/www/manager6/window/Backup.js b/www/manager6/window/Backup.js
index 510430c0..d2f8aa66 100644
--- a/www/manager6/window/Backup.js
+++ b/www/manager6/window/Backup.js
@@ -4,7 +4,7 @@ Ext.define('PVE.window.Backup', {
     resizable: false,
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
@@ -71,7 +71,7 @@ Ext.define('PVE.window.Backup', {
 
 	let initialDefaults = false;
 
-	var storagesel = Ext.create('PVE.form.StorageSelector', {
+	let storagesel = Ext.create('PVE.form.StorageSelector', {
 	    nodename: me.nodename,
 	    name: 'storage',
 	    fieldLabel: gettext('Storage'),
@@ -239,12 +239,12 @@ Ext.define('PVE.window.Backup', {
 	    ],
 	});
 
-	var submitBtn = Ext.create('Ext.Button', {
+	let submitBtn = Ext.create('Ext.Button', {
 	    text: gettext('Backup'),
 	    handler: function() {
-		var storage = storagesel.getValue();
+		let storage = storagesel.getValue();
 		let values = me.formPanel.getValues();
-		var params = {
+		let params = {
 		    storage: storage,
 		    vmid: me.vmid,
 		    mode: values.mode,
@@ -280,9 +280,9 @@ Ext.define('PVE.window.Backup', {
 			// after the task has completed
 			me.hide();
 
-			var upid = response.result.data;
+			let upid = response.result.data;
 
-			var win = Ext.create('Proxmox.window.TaskViewer', {
+			let win = Ext.create('Proxmox.window.TaskViewer', {
 			    upid: upid,
 			    listeners: {
 				close: function() {
@@ -296,13 +296,13 @@ Ext.define('PVE.window.Backup', {
 	    },
 	});
 
-	var helpBtn = Ext.create('Proxmox.button.Help', {
+	let helpBtn = Ext.create('Proxmox.button.Help', {
 	    onlineHelp: 'chapter_vzdump',
 	    listenToGlobalEvent: false,
 	    hidden: false,
 	});
 
-	var title = gettext('Backup') + " " +
+	let title = gettext('Backup') + " " +
 	    (me.vmtype === 'lxc' ? "CT" : "VM") +
 	    " " + me.vmid;
 
diff --git a/www/manager6/window/BackupConfig.js b/www/manager6/window/BackupConfig.js
index ca61b1e4..413e8a1d 100644
--- a/www/manager6/window/BackupConfig.js
+++ b/www/manager6/window/BackupConfig.js
@@ -18,13 +18,13 @@ Ext.define('PVE.window.BackupConfig', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.volume) {
 	    throw "no volume specified";
 	}
 
-	var nodename = me.pveSelNode.data.node;
+	let nodename = me.pveSelNode.data.node;
 	if (!nodename) {
 	    throw "no node name specified";
 	}
diff --git a/www/manager6/window/BulkAction.js b/www/manager6/window/BulkAction.js
index 01233080..f6c7a37d 100644
--- a/www/manager6/window/BulkAction.js
+++ b/www/manager6/window/BulkAction.js
@@ -17,7 +17,7 @@ Ext.define('PVE.window.BulkAction', {
     action: undefined,
 
     submit: function(params) {
-	var me = this;
+	let me = this;
 
 	Proxmox.Utils.API2Request({
 	    params: params,
@@ -28,9 +28,9 @@ Ext.define('PVE.window.BulkAction', {
 		Ext.Msg.alert('Error', response.htmlStatus);
 	    },
 	    success: function(response, options) {
-		var upid = response.result.data;
+		let upid = response.result.data;
 
-		var win = Ext.create('Proxmox.window.TaskViewer', {
+		let win = Ext.create('Proxmox.window.TaskViewer', {
 		    upid: upid,
 		});
 		win.show();
@@ -43,7 +43,7 @@ Ext.define('PVE.window.BulkAction', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
@@ -58,7 +58,7 @@ Ext.define('PVE.window.BulkAction', {
 	    throw "no title specified";
 	}
 
-	var items = [];
+	let items = [];
 
 	if (me.action === 'migrateall') {
 	    /*value is string and number*/
@@ -155,9 +155,9 @@ Ext.define('PVE.window.BulkAction', {
 	    items: items,
 	});
 
-	var form = me.formPanel.getForm();
+	let form = me.formPanel.getForm();
 
-	var submitBtn = Ext.create('Ext.Button', {
+	let submitBtn = Ext.create('Ext.Button', {
 	    text: me.btnText,
 	    handler: function() {
 		form.isValid();
@@ -173,7 +173,7 @@ Ext.define('PVE.window.BulkAction', {
 	me.callParent();
 
 	form.on('validitychange', function() {
-	    var valid = form.isValid();
+	    let valid = form.isValid();
 	    submitBtn.setDisabled(!valid);
 	});
 	form.isValid();
diff --git a/www/manager6/window/Clone.js b/www/manager6/window/Clone.js
index e94cd92d..918ab9b7 100644
--- a/www/manager6/window/Clone.js
+++ b/www/manager6/window/Clone.js
@@ -28,8 +28,8 @@ Ext.define('PVE.window.Clone', {
 		    Ext.Msg.alert('Error', response.htmlStatus);
 		},
 		success: function(response, opts) {
-		    var snapshotList = response.result.data;
-		    var hasSnapshots = !(snapshotList.length === 1 &&
+		    let snapshotList = response.result.data;
+		    let hasSnapshots = !(snapshotList.length === 1 &&
 			snapshotList[0].name === 'current');
 
 		    Ext.create('PVE.window.Clone', {
@@ -45,9 +45,9 @@ Ext.define('PVE.window.Clone', {
     },
 
     create_clone: function(values) {
-	var me = this;
+	let me = this;
 
-	var params = { newid: values.newvmid };
+	let params = { newid: values.newvmid };
 
 	if (values.snapname && values.snapname !== 'current') {
 	    params.snapname = values.snapname;
@@ -95,21 +95,21 @@ Ext.define('PVE.window.Clone', {
 
     // disable the Storage selector when clone mode is linked clone
     updateVisibility: function() {
-	var me = this;
-	var clonemode = me.lookupReference('clonemodesel').getValue();
-	var disksel = me.lookup('diskselector');
+	let me = this;
+	let clonemode = me.lookupReference('clonemodesel').getValue();
+	let disksel = me.lookup('diskselector');
 	disksel.setDisabled(clonemode === 'clone');
     },
 
     // add to the list of valid nodes each node where
     // all the VM disks are available
     verifyFeature: function() {
-	var me = this;
+	let me = this;
 
-	var snapname = me.lookupReference('snapshotsel').getValue();
-	var clonemode = me.lookupReference('clonemodesel').getValue();
+	let snapname = me.lookupReference('snapshotsel').getValue();
+	let clonemode = me.lookupReference('clonemodesel').getValue();
 
-	var params = { feature: clonemode };
+	let params = { feature: clonemode };
 	if (snapname !== 'current') {
 	    params.snapname = snapname;
 	}
@@ -124,7 +124,7 @@ Ext.define('PVE.window.Clone', {
 		Ext.Msg.alert('Error', response.htmlStatus);
 	    },
 	    success: function(response, options) {
-		var res = response.result.data;
+		let res = response.result.data;
 
 		me.lookupReference('targetsel').allowedNodes = res.nodes;
 		me.lookupReference('targetsel').validate();
@@ -133,7 +133,7 @@ Ext.define('PVE.window.Clone', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
@@ -151,14 +151,14 @@ Ext.define('PVE.window.Clone', {
 	    throw "no Guest Type specified";
 	}
 
-	var titletext = me.guestType === 'lxc' ? 'CT' : 'VM';
+	let titletext = me.guestType === 'lxc' ? 'CT' : 'VM';
 	if (me.isTemplate) {
 	    titletext += ' Template';
 	}
 	me.title = "Clone " + titletext + " " + me.vmid;
 
-	var col1 = [];
-	var col2 = [];
+	let col1 = [];
+	let col2 = [];
 
 	col1.push({
 	    xtype: 'pveNodeSelector',
@@ -175,7 +175,7 @@ Ext.define('PVE.window.Clone', {
 	    },
 	});
 
-	var modelist = [['copy', gettext('Full Clone')]];
+	let modelist = [['copy', gettext('Full Clone')]];
 	if (me.isTemplate) {
 	    modelist.push(['clone', gettext('Linked Clone')]);
 	}
@@ -251,7 +251,7 @@ Ext.define('PVE.window.Clone', {
 	    disabled: !!me.isTemplate, // because default mode is clone for templates
 	});
 
-	var formPanel = Ext.create('Ext.form.Panel', {
+	let formPanel = Ext.create('Ext.form.Panel', {
 	    bodyPadding: 10,
 	    reference: 'cloneform',
 	    border: false,
@@ -295,7 +295,7 @@ Ext.define('PVE.window.Clone', {
 		text: gettext('Clone'),
 		disabled: true,
 		handler: function() {
-		    var cloneForm = me.lookupReference('cloneform');
+		    let cloneForm = me.lookupReference('cloneform');
 		    if (cloneForm.isValid()) {
 			me.create_clone(cloneForm.getValues());
 		    }
diff --git a/www/manager6/window/DownloadUrlToStorage.js b/www/manager6/window/DownloadUrlToStorage.js
index 48543d28..61f6a329 100644
--- a/www/manager6/window/DownloadUrlToStorage.js
+++ b/www/manager6/window/DownloadUrlToStorage.js
@@ -13,7 +13,7 @@ Ext.define('PVE.window.DownloadUrlToStorage', {
     submitText: gettext('Download'),
 
     cbindData: function(initialConfig) {
-	var me = this;
+	let me = this;
 	return {
 	    nodename: me.nodename,
 	    storage: me.storage,
@@ -215,7 +215,7 @@ Ext.define('PVE.window.DownloadUrlToStorage', {
     ],
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	if (!me.nodename) {
 	    throw "no node name specified";
diff --git a/www/manager6/window/FirewallEnableEdit.js b/www/manager6/window/FirewallEnableEdit.js
index 34ecadbc..cb81656f 100644
--- a/www/manager6/window/FirewallEnableEdit.js
+++ b/www/manager6/window/FirewallEnableEdit.js
@@ -31,7 +31,7 @@ Ext.define('PVE.FirewallEnableEdit', {
     ],
 
     beforeShow: function() {
-	var me = this;
+	let me = this;
 
 	Proxmox.Utils.API2Request({
 	    url: '/api2/extjs/cluster/firewall/options',
diff --git a/www/manager6/window/FirewallLograteEdit.js b/www/manager6/window/FirewallLograteEdit.js
index 12fcc3f1..d3a1e865 100644
--- a/www/manager6/window/FirewallLograteEdit.js
+++ b/www/manager6/window/FirewallLograteEdit.js
@@ -77,7 +77,7 @@ Ext.define('PVE.FirewallLograteInputPanel', {
 	if (values.log_ratelimit !== undefined) {
 	    properties = PVE.Parser.parsePropertyString(values.log_ratelimit, 'enable');
 	    if (properties.rate) {
-		var matches = properties.rate.match(/^(\d+)\/(second|minute|hour|day)$/);
+		let matches = properties.rate.match(/^(\d+)\/(second|minute|hour|day)$/);
 		if (matches) {
 		    properties.rate = matches[1];
 		    properties.unit = matches[2];
diff --git a/www/manager6/window/LoginWindow.js b/www/manager6/window/LoginWindow.js
index 4a07f75b..99c3f6b8 100644
--- a/www/manager6/window/LoginWindow.js
+++ b/www/manager6/window/LoginWindow.js
@@ -22,12 +22,12 @@ Ext.define('PVE.window.LoginWindow', {
 	xclass: 'Ext.app.ViewController',
 
 	onLogon: async function() {
-	    var me = this;
+	    let me = this;
 
-	    var form = this.lookupReference('loginForm');
-	    var unField = this.lookupReference('usernameField');
-	    var saveunField = this.lookupReference('saveunField');
-	    var view = this.getView();
+	    let form = this.lookupReference('loginForm');
+	    let unField = this.lookupReference('usernameField');
+	    let saveunField = this.lookupReference('saveunField');
+	    let view = this.getView();
 
 	    if (!form.isValid()) {
 		return;
@@ -62,7 +62,7 @@ Ext.define('PVE.window.LoginWindow', {
 	    view.el.mask(gettext('Please wait...'), 'x-mask-loading');
 
 	    // set or clear username
-	    var sp = Ext.state.Manager.getProvider();
+	    let sp = Ext.state.Manager.getProvider();
 	    if (saveunField.getValue() === true) {
 		sp.set(unField.getStateId(), unField.getValue());
 	    } else {
@@ -135,11 +135,11 @@ Ext.define('PVE.window.LoginWindow', {
 	/* END NEW TFA CODE (pbs copy) */
 
 	failure: function(resp) {
-	    var me = this;
-	    var view = me.getView();
+	    let me = this;
+	    let view = me.getView();
 	    view.el.unmask();
-	    var handler = function() {
-		var uf = me.lookupReference('usernameField');
+	    let handler = function() {
+		let uf = me.lookupReference('usernameField');
 		uf.focus(true, true);
 	    };
 
@@ -152,16 +152,16 @@ Ext.define('PVE.window.LoginWindow', {
 	    Ext.MessageBox.alert(gettext('Error'), emsg, handler);
 	},
 	success: function(data) {
-	    var me = this;
-	    var view = me.getView();
-	    var handler = view.handler || Ext.emptyFn;
+	    let me = this;
+	    let view = me.getView();
+	    let handler = view.handler || Ext.emptyFn;
 	    handler.call(me, data);
 	    view.close();
 	},
 
 	perform_otp: function() {
-	    var me = this;
-	    var win = Ext.create('PVE.window.TFALoginWindow', {
+	    let me = this;
+	    let win = Ext.create('PVE.window.TFALoginWindow', {
 		onLogin: function(value) {
 		    me.finish_tfa(value);
 		},
@@ -175,15 +175,15 @@ Ext.define('PVE.window.LoginWindow', {
 	},
 
 	perform_u2f: function(data) {
-	    var me = this;
+	    let me = this;
 	    // Show the message:
-	    var msg = Ext.Msg.show({
+	    let msg = Ext.Msg.show({
 		title: 'U2F: '+gettext('Verification'),
 		message: gettext('Please press the button on your U2F Device'),
 		buttons: [],
 	    });
-	    var chlg = data.U2FChallenge;
-	    var key = {
+	    let chlg = data.U2FChallenge;
+	    let key = {
 		version: chlg.version,
 		keyHandle: chlg.keyHandle,
 	    };
@@ -199,8 +199,8 @@ Ext.define('PVE.window.LoginWindow', {
 	    });
 	},
 	finish_tfa: function(res) {
-	    var me = this;
-	    var view = me.getView();
+	    let me = this;
+	    let view = me.getView();
 	    view.el.mask(gettext('Please wait...'), 'x-mask-loading');
 	    Proxmox.Utils.API2Request({
 		url: '/api2/extjs/access/tfa',
@@ -212,7 +212,7 @@ Ext.define('PVE.window.LoginWindow', {
 		success: function(resp, opts) {
 		    view.el.unmask();
 		    // Fill in what we copy over from the 1st factor:
-		    var data = resp.result.data;
+		    let data = resp.result.data;
 		    data.CSRFPreventionToken = Proxmox.CSRFPreventionToken;
 		    data.username = Proxmox.UserName;
 		    // Finish logging in:
@@ -229,7 +229,7 @@ Ext.define('PVE.window.LoginWindow', {
 	    'field[name=username]': {
 		specialkey: function(f, e) {
 		    if (e.getKey() === e.ENTER) {
-			var pf = this.lookupReference('passwordField');
+			let pf = this.lookupReference('passwordField');
 			if (!pf.getValue()) {
 			    pf.focus(false);
 			}
@@ -238,7 +238,7 @@ Ext.define('PVE.window.LoginWindow', {
 	    },
 	    'field[name=lang]': {
 		change: function(f, value) {
-		    var dt = Ext.Date.add(new Date(), Ext.Date.YEAR, 10);
+		    let dt = Ext.Date.add(new Date(), Ext.Date.YEAR, 10);
 		    Ext.util.Cookies.set('PVELangCookie', value, dt);
 		    this.getView().mask(gettext('Please wait...'), 'x-mask-loading');
 		    window.location.reload();
@@ -257,19 +257,19 @@ Ext.define('PVE.window.LoginWindow', {
 	    },
 	    '#': {
 		show: function() {
-		    var me = this;
+		    let me = this;
 
-		    var sp = Ext.state.Manager.getProvider();
-		    var checkboxField = this.lookupReference('saveunField');
-		    var unField = this.lookupReference('usernameField');
+		    let sp = Ext.state.Manager.getProvider();
+		    let checkboxField = this.lookupReference('saveunField');
+		    let unField = this.lookupReference('usernameField');
 
-		    var checked = sp.get(checkboxField.getStateId());
+		    let checked = sp.get(checkboxField.getStateId());
 		    checkboxField.setValue(checked);
 
 		    if (checked === true) {
-			var username = sp.get(unField.getStateId());
+			let username = sp.get(unField.getStateId());
 			unField.setValue(username);
-			var pwField = this.lookupReference('passwordField');
+			let pwField = this.lookupReference('passwordField');
 			pwField.focus();
 		    }
 
diff --git a/www/manager6/window/Migrate.js b/www/manager6/window/Migrate.js
index 1c23abb3..54e1f700 100644
--- a/www/manager6/window/Migrate.js
+++ b/www/manager6/window/Migrate.js
@@ -74,7 +74,7 @@ Ext.define('PVE.window.Migrate', {
 	},
 
 	init: function(view) {
-	    var me = this,
+	    let me = this,
 		vm = view.getViewModel();
 
 	    if (!view.nodename) {
@@ -108,12 +108,12 @@ Ext.define('PVE.window.Migrate', {
 	},
 
 	startMigration: function() {
-	    var me = this,
+	    let me = this,
 		view = me.getView(),
 		vm = me.getViewModel();
 
-	    var values = me.lookup('formPanel').getValues();
-	    var params = {
+	    let values = me.lookup('formPanel').getValues();
+	    let params = {
 		target: values.target,
 	    };
 
@@ -142,8 +142,8 @@ Ext.define('PVE.window.Migrate', {
 		    Ext.Msg.alert(gettext('Error'), response.htmlStatus);
 		},
 		success: function(response, options) {
-		    var upid = response.result.data;
-		    var extraTitle = Ext.String.format(' ({0} ---> {1})', vm.get('nodename'), params.target);
+		    let upid = response.result.data;
+		    let extraTitle = Ext.String.format(' ({0} ---> {1})', vm.get('nodename'), params.target);
 
 		    Ext.create('Proxmox.window.TaskViewer', {
 			upid: upid,
@@ -156,10 +156,10 @@ Ext.define('PVE.window.Migrate', {
 	},
 
 	checkMigratePreconditions: function(resetMigrationPossible) {
-	    var me = this,
+	    let me = this,
 		vm = me.getViewModel();
 
-	    var vmrec = PVE.data.ResourceStore.findRecord('vmid', vm.get('vmid'),
+	    let vmrec = PVE.data.ResourceStore.findRecord('vmid', vm.get('vmid'),
 			0, false, false, true);
 	    if (vmrec && vmrec.data && vmrec.data.running) {
 		vm.set('running', true);
diff --git a/www/manager6/window/Prune.js b/www/manager6/window/Prune.js
index 6156fe03..e16daa25 100644
--- a/www/manager6/window/Prune.js
+++ b/www/manager6/window/Prune.js
@@ -106,7 +106,7 @@ Ext.define('PVE.PruneInputPanel', {
 		    Ext.Msg.alert(gettext('Error'), response.htmlStatus);
 		},
 		success: function(response, options) {
-		    var data = response.result.data;
+		    let data = response.result.data;
 		    addKeepReasons(data, keepParams);
 		    view.pruneStore.setData(data);
 		},
@@ -152,7 +152,7 @@ Ext.define('PVE.PruneInputPanel', {
     ],
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	me.pruneStore = Ext.create('Ext.data.Store', {
 	    model: 'pve-prune-list',
@@ -214,7 +214,7 @@ Ext.define('PVE.window.Prune', {
     isCreate: true,
 
     initComponent: function() {
-        var me = this;
+        let me = this;
 
 	if (!me.nodename) {
 	    throw "no nodename specified";
diff --git a/www/manager6/window/Settings.js b/www/manager6/window/Settings.js
index 5cf7a70f..67a55b5b 100644
--- a/www/manager6/window/Settings.js
+++ b/www/manager6/window/Settings.js
@@ -29,12 +29,12 @@ Ext.define('PVE.window.Settings', {
 	xclass: 'Ext.app.ViewController',
 
 	init: function(view) {
-	    var me = this;
-	    var sp = Ext.state.Manager.getProvider();
+	    let me = this;
+	    let sp = Ext.state.Manager.getProvider();
 
-	    var username = sp.get('login-username') || Proxmox.Utils.noneText;
+	    let username = sp.get('login-username') || Proxmox.Utils.noneText;
 	    me.lookupReference('savedUserName').setValue(Ext.String.htmlEncode(username));
-	    var vncMode = sp.get('novnc-scaling') || 'auto';
+	    let vncMode = sp.get('novnc-scaling') || 'auto';
 	    me.lookupReference('noVNCScalingGroup').setValue({ noVNCScalingField: vncMode });
 
 	    let summarycolumns = sp.get('summarycolumns', 'auto');
@@ -42,11 +42,11 @@ Ext.define('PVE.window.Settings', {
 
 	    me.lookup('guestNotesCollapse').setValue(sp.get('guest-notes-collapse', 'never'));
 
-	    var settings = ['fontSize', 'fontFamily', 'letterSpacing', 'lineHeight'];
+	    let settings = ['fontSize', 'fontFamily', 'letterSpacing', 'lineHeight'];
 	    settings.forEach(function(setting) {
-		var val = localStorage.getItem('pve-xterm-' + setting);
+		let val = localStorage.getItem('pve-xterm-' + setting);
 		if (val !== undefined && val !== null) {
-		    var field = me.lookup(setting);
+		    let field = me.lookup(setting);
 		    field.setValue(val);
 		    field.resetOriginalValue();
 		}
@@ -71,12 +71,12 @@ Ext.define('PVE.window.Settings', {
 	    },
 	    '#xtermjs button': {
 		click: function(button) {
-		    var me = this;
-		    var settings = ['fontSize', 'fontFamily', 'letterSpacing', 'lineHeight'];
+		    let me = this;
+		    let settings = ['fontSize', 'fontFamily', 'letterSpacing', 'lineHeight'];
 		    settings.forEach(function(setting) {
-			var field = me.lookup(setting);
+			let field = me.lookup(setting);
 			if (button.reference === 'xtermsave') {
-			    var value = field.getValue();
+			    let value = field.getValue();
 			    if (value) {
 				localStorage.setItem('pve-xterm-' + setting, value);
 			    } else {
@@ -112,8 +112,8 @@ Ext.define('PVE.window.Settings', {
 	    },
 	    'grid[reference=dashboard-storages]': {
 		selectionchange: function(grid, selected) {
-		    var me = this;
-		    var sp = Ext.state.Manager.getProvider();
+		    let me = this;
+		    let sp = Ext.state.Manager.getProvider();
 
 		    // saves the selected storageids as "id1,id2,id3,..." or clears the variable
 		    if (selected.length > 0) {
diff --git a/www/manager6/window/Snapshot.js b/www/manager6/window/Snapshot.js
index 426be7cc..42d4981a 100644
--- a/www/manager6/window/Snapshot.js
+++ b/www/manager6/window/Snapshot.js
@@ -25,8 +25,8 @@ Ext.define('PVE.window.Snapshot', {
     },
 
     initComponent: function() {
-	var me = this;
-	var vm = me.getViewModel();
+	let me = this;
+	let vm = me.getViewModel();
 
 	if (!me.nodename) {
 	    throw "no node name specified";
diff --git a/www/manager6/window/StartupEdit.js b/www/manager6/window/StartupEdit.js
index b9fd7646..dd107c11 100644
--- a/www/manager6/window/StartupEdit.js
+++ b/www/manager6/window/StartupEdit.js
@@ -3,9 +3,9 @@ Ext.define('PVE.panel.StartupInputPanel', {
     onlineHelp: 'qm_startup_and_shutdown',
 
     onGetValues: function(values) {
-	var me = this;
+	let me = this;
 
-	var res = PVE.Parser.printStartup(values);
+	let res = PVE.Parser.printStartup(values);
 
 	if (res === undefined || res === '') {
 	    return { 'delete': 'startup' };
@@ -15,16 +15,16 @@ Ext.define('PVE.panel.StartupInputPanel', {
     },
 
     setStartup: function(value) {
-	var me = this;
+	let me = this;
 
-	var startup = PVE.Parser.parseStartup(value);
+	let startup = PVE.Parser.parseStartup(value);
 	if (startup) {
 	    me.setValues(startup);
 	}
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
 	me.items = [
 	    {
diff --git a/www/manager6/window/Wizard.js b/www/manager6/window/Wizard.js
index 4aacb8a3..8a3942bc 100644
--- a/www/manager6/window/Wizard.js
+++ b/www/manager6/window/Wizard.js
@@ -34,9 +34,9 @@ Ext.define('PVE.window.Wizard', {
     },
 
     initComponent: function() {
-	var me = this;
+	let me = this;
 
-	var tabs = me.items || [];
+	let tabs = me.items || [];
 	delete me.items;
 
 	/*
-- 
2.30.2





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