Proxmox 8.4.13 – Web UI broken on ChromeOS + iPhone (cannot click UI elements, NoVNC/USB dropdown not working)

lucasgariglia

New Member
Nov 17, 2025
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Hi,
after updating to Proxmox 8.4.13, the web interface has become almost unusable on both ChromeOS (Chromebook) and iPhone (Safari + Chrome).

❗ Symptoms

I cannot click many UI elements

The "Add → USB Device" modal will not open

Dropdowns do not respond

The NoVNC console button does nothing

The left sidebar reacts very slowly or not at all

Only the Shell section works

Same behaviour in ChromeOS Chrome, ChromeOS Firefox, iPhone Safari, and iPhone Chrome


✔️ What works

The mobile version on my Samsung phone works

A desktop PC browser also works normally (Windows/Linux)


This suggests a rendering/JS issue affecting ChromeOS + iOS browsers.

❗ What I have tried (none helped)

Full browser refresh (Ctrl+Shift+R)

Clear cache/cookies/service worker data

Force disable hardware acceleration in ChromeOS

systemctl restart pveproxy

apt update && apt full-upgrade

Removing cached UI files:

rm -rf /usr/share/pve-manager/js
rm -rf /usr/share/pve-manager/css
rm -rf /usr/share/pve-manager/ext6
rm -rf /var/lib/pve-manager/*

Tried Firefox on ChromeOS → same problem

Tried Chrome and Safari on iPhone → same problem


✔️ Additional details

ChromeOS chrome://gpu shows:

Direct Rendering Display Compositor: Disabled

Rasterization: Software only

Video Decode: Software only


This may or may not be related.

❓ Question

Is this a known issue with Proxmox 8.4.13 web UI on ChromeOS and iOS browsers?
It looks like a frontend/JavaScript regression that breaks modal windows and dropdowns.

Any known workaround or fix would be greatly appreciated.
Thank you!