webgui won't open


Aug 20, 2019
Hi 2 all!

I have some problem with webgui.
trying to open by server ip:8006 and see the white page.

I try clear cache, other browsers and internet connection, with no result

using a IE developer tools i see:
501 no such file '/PVE/StdWorkspace.js'

proxmox-ve: 5.2-2 (running kernel: 4.15.17-1-pve)
pve-manager: 5.2-1 (running version: 5.2-1/0fcd7879)

i have ssh access and all vm`s runing normaly and can access via the mobile version
problem soloved updating to:
proxmox-ve: 5.4-2 (running kernel: 4.15.17-1-pve)
pve-manager: 5.4-13 (running version: 5.4-13/aee6f0ec)
:eek: Same problem of WebGUI after the today upgrade with proxmox-widget-toolkit/stable 2.4-9: blank page :mad: and 501 no such file '/PVE/StdWorkspace.js'
proxmox-ve: 6.3-1 (running kernel: 5.4.78-2-pve)
pve-manager: 6.3-6 (running version: 6.3-6/2184247e)

The bug occurs with the new version 2.4-9 of /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js with older web browsers, while the previous version 2.4-6 is functionnal (ongoing investigation...).
Last edited:
The bug occurs with the new version 2.4-9 of /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js with older web browsers, while the previous version 2.4-6 is functionnal (ongoing investigation...).
what browser do you use?

did you already try to reinstall ? 'apt install --reinstall proxmox-widget-toolkit'

Yes the 'apt install --reinstall proxmox-widget-toolkit' was tried before ;).

For compatibility with our disparate IT park (some admins with old OS in foreign countries), I often check with older web browsers. For instance:
- Ok with Firefox 66 but not with Firefox ESR 52.9
- Ok with last chrome 89 but not with chromium 49.

Best regards and thank you for your feedback,
Last edited:
yeah we do not support older browsers, since we use some modern js features
I confirm : the bug is caused by the spread syntax ...me.domain in the line 10466 of the javascript file "/usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js" version 2.4-9.

I am not a javascript pro but if I am not saying anything stupid, the line
let values = { ...me.domain };
should be able to be replaced by something like
var values = Object.assign({}, me.domain);
or better still by
function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
var values = _extends({}, me.domain);
and thus keep the compatibility available so far.
Last edited:
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Of course, same problem in the javascript file "/usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js" version 2.5-1 with the spread syntax

For those using older browsers, you will find attached a modified version.


  • proxmoxlib.js.v2.5-1_ok_for_old_browser.txt
    304.7 KB · Views: 30
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Thanks, this "bug" has annoyed me about some time, and today I found this thread in here after searching about StdWorkspace.js which I nail down using Chrome DevTools.
My problem is while traveling I use a ChromeBook, but it is old and I can't upgrade the OS/Browser anymore.
I am stucked with version 75.0.3770.144.
I was using my phone to bypass this problem until now. :-/
I found this just a Syntax change on javascript And found the follow way to fix it in the older browser.
(you need login as root and change this follow two files)

Plz note, Before you Change any file, back it up!!!
Any change for file may make the system unstable(and terrible in upgrade)


        if (values.password?.length === 0) {
            delete values.password;
        if (values.username?.length === 0) {
            delete values.username;
        if (values.password && values.password.length === 0) {
            delete values.password;
        if (values.username && values.username.length === 0) {
            delete values.username;
let fieldValue = item.data[field]?.toString().toLowerCase();
let fieldValue = item.data[field] && item.data[field].toString().toLowerCase();

const subscription = res?.data?.status.toLowerCase() === 'active';
const subscription = res && res.data && res.data.status.toLowerCase() === 'active';

hidden: Proxmox?.Setup?.auth_cookie_name !== 'PVEAuthCookie', // FIXME currently only PVE supports it
hidden: Proxmox && Proxmox.Setup && Proxmox.Setup.auth_cookie_name !== 'PVEAuthCookie', // FIXME currently only PVE supports it

And this is the package version list
proxmox-ve: 7.0-2 (running kernel: 5.11.22-4-pve)
pve-manager: 7.0-11 (running version: 7.0-11/63d82f4e)
pve-kernel-5.11: 7.0-7
pve-kernel-helper: 7.0-7
pve-kernel-5.4: 6.4-6
pve-kernel-5.11.22-4-pve: 5.11.22-8
pve-kernel-5.4.140-1-pve: 5.4.140-1
pve-kernel-5.4.78-2-pve: 5.4.78-2
pve-kernel-5.4.73-1-pve: 5.4.73-1
ceph-fuse: 14.2.21-1
corosync: 3.1.5-pve1
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown: not correctly installed
ifupdown2: 3.1.0-1+pmx3
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.22-pve1
libproxmox-acme-perl: 1.3.0
libproxmox-backup-qemu0: 1.2.0-1
libpve-access-control: 7.0-4
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.0-6
libpve-guest-common-perl: 4.0-2
libpve-http-server-perl: 4.0-2
libpve-storage-perl: 7.0-11
libqb0: 1.0.5-1
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 4.0.9-4
lxcfs: 4.0.8-pve2
novnc-pve: 1.2.0-3
proxmox-backup-client: 2.0.9-2
proxmox-backup-file-restore: 2.0.9-2
proxmox-mini-journalreader: 1.2-1
proxmox-widget-toolkit: 3.3-6
pve-cluster: 7.0-3
pve-container: 4.0-9
pve-docs: 7.0-5
pve-edk2-firmware: 3.20200531-1
pve-firewall: 4.2-3
pve-firmware: 3.3-1
pve-ha-manager: 3.3-1
pve-i18n: 2.5-1
pve-qemu-kvm: 6.0.0-4
pve-xtermjs: 4.12.0-1
qemu-server: 7.0-13
smartmontools: 7.2-pve2
spiceterm: 3.2-2
vncterm: 1.7-1
zfsutils-linux: 2.0.5-pve1
Last edited:
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