Proxmox web portal renders as blank web page

For support with specific websites

Moderator: trava90

Forum rules
Please always mention the name/domain of the website in question in your topic title.
Please one website per topic thread (to help keep things organized). While behavior on different sites might at first glance seem similar, they are not necessarily caused by the same.

Please try to include any relevant output from the Toolkit Error Console or the Developer Tools Web Console using the following procedure:
  1. Clear any current output
  2. Navigate or refresh the page in question
  3. Copy and paste Errors or seemingly relevant Warnings into a single [ code ] block.
User avatar
redyoshi49q
Moongazer
Moongazer
Posts: 8
Joined: 2020-10-12, 22:07

Proxmox web portal renders as blank web page

Unread post by redyoshi49q » 2021-09-10, 00:37

This issue might be the same as the one previously reported at https://forum.palemoon.org/viewtopic.php?f=41&t=20728 ... but that thread's report seems to have been incomplete.

When using Pale Moon 29.4.0.2 on 64 bit Linux Mint 20.2, attempting to view the web portal of a running Proxmox Virtual Environment 7.0-11 instance (after confirming the security exception for an unverified HTTPS signing certificate) produces a webpage with nothing but white within its rendered content. Below is a screenshot of the issue being reproduced in a blank Pale Moon user profile:
proxmox_pale_moon_blank_profile.png
A standard Proxmox package that implements a night theme is in use, but the issue also existed before the night theme package was applied. No other changes were made within Proxmox that should have impacted the Proxmox web UI since the original installation of Proxmox. In addition, Firefox is able to render the Proxmox web portal just fine:
proxmox_firefox.png
Comparing the DOM inspectors of Firefox and of a (non-blank) Pale Moon user profile being used on the Proxmox web portal's tab, it seems that almost all of the DOM elements of the Proxmox web portal are missing from the Pale Moon render; there also seem to be some errors that could potentially be related to the lack of rendered content.
proxmox_dom_inspector_comparison.png
.

Let me know if there's any more information that I could provide on my end to help.

Lurker_01
Fanatic
Fanatic
Posts: 122
Joined: 2015-06-12, 14:59
Location: Uruguay

Re: Proxmox web portal renders as blank web page

Unread post by Lurker_01 » 2021-09-10, 01:05

Based on syntax errors, is possible the problem is with the use of ?. optional chaining operator (an already reported issue to support it), cant find the scripts on a public repository and not going to download an iso/install just to be 100% sure.

Locked