[BUG] KasmVNC encountered an error (Synology Docker)

[vishae]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

When trying to access Calibre using Synology's Quick Connect (using my own domain), I would get an error:

KasmVNC encountered an error: TypeError: undefined is not an object (evaluating 'UI.rfb.lastActiveAt')

However, when I try accessing Calibre using my local IP, it opens just fine.
This only just recently started happening. I didn't have an issue a couple weeks ago.
I should mention that Calibre Web is still working fine.

Expected Behavior

Calibre should open without error regardless of whether I use my registered domain or local IP address.

Steps To Reproduce

I enter the URL to the docker container.

Environment

- OS: Synology DSM
- How docker service was installed: I used Container Manager

CPU architecture

x86-64

Docker creation

Container logs

date	stream	content
2025/02/27 16:15:29	stdout	 2025-02-27 16:15:29,899 [PRIO] Connections: accepted: @172.17.0.1_1740633329.880952::websocket
2025/02/27 16:15:29	stdout	 2025-02-27 16:15:29,880 [INFO] websocket 0: got client connection from 127.0.0.1
2025/02/27 16:15:27	stdout	qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
2025/02/27 16:15:22	stdout	Obt-Message: Xinerama extension is not present on the server
2025/02/27 16:15:22	stdout	[mi] mieq: warning: overriding existing handler (nil) with 0x557d2c55e930 for event 3
2025/02/27 16:15:22	stdout	[mi] mieq: warning: overriding existing handler (nil) with 0x557d2c55e930 for event 2
2025/02/27 16:15:22	stdout	[ls.io-init] done.
2025/02/27 16:15:22	stdout	Errors from xkbcomp are not fatal to the X server
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86NavInfo
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86SidevuSonar
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86ClearvuSonar
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86TraditionalSonar
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86RadarOverlay
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86DualRangeRadar
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86SingleRangeRadar
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86FishingChart
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86NavChart
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86Sos
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86MarkWaypoint
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86AutopilotEngageToggle
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86PreviousElement
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86NextElement
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86CameraAccessToggle
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86CameraAccessDisable
2025/02/27 16:15:22	stdout	> Warning:          Could not resolve keysym XF86CameraAccessEnable
2025/02/27 16:15:22	stdout	The XKEYBOARD keymap compiler (xkbcomp) reports:
2025/02/27 16:15:22	stdout	19
2025/02/27 16:15:22	stdout	
2025/02/27 16:15:22	stdout	Underlying X server release 12101012
2025/02/27 16:15:22	stdout	See http://kasmweb.com for information on KasmVNC.
2025/02/27 16:15:22	stdout	Copyright (C) 1999-2018 KasmVNC Team and many others (see README.me)
2025/02/27 16:15:22	stdout	Xvnc KasmVNC 1.3.3 - built Feb 22 2025 19:05:16
2025/02/27 16:15:22	stdout	
2025/02/27 16:15:22	stdout	_XSERVTransmkdir: Owner of /tmp/.X11-unix should be set to root
2025/02/27 16:15:22	stdout	[custom-init] No custom files found, skipping...
2025/02/27 16:15:21	stdout	    
2025/02/27 16:15:21	stdout	───────────────────────────────────────
2025/02/27 16:15:21	stdout	Build-date: 2025-02-26T06:41:34+00:00
2025/02/27 16:15:21	stdout	Linuxserver.io version: v7.26.0-ls324
2025/02/27 16:15:21	stdout	───────────────────────────────────────
2025/02/27 16:15:21	stdout	User GID:    100
2025/02/27 16:15:21	stdout	User UID:    1027
2025/02/27 16:15:21	stdout	
2025/02/27 16:15:21	stdout	───────────────────────────────────────
2025/02/27 16:15:21	stdout	GID/UID
2025/02/27 16:15:21	stdout	───────────────────────────────────────
2025/02/27 16:15:21	stdout	
2025/02/27 16:15:21	stdout	https://www.linuxserver.io/donate/
2025/02/27 16:15:21	stdout	To support LSIO projects visit:
2025/02/27 16:15:21	stdout	
2025/02/27 16:15:21	stdout	───────────────────────────────────────
2025/02/27 16:15:21	stdout	   Brought to you by linuxserver.io
2025/02/27 16:15:21	stdout	
2025/02/27 16:15:21	stdout	      ╚══════╝╚══════╝╚═╝ ╚═════╝
2025/02/27 16:15:21	stdout	      ███████╗███████║██║╚██████╔╝
2025/02/27 16:15:21	stdout	      ██║     ╚════██║██║██║   ██║
2025/02/27 16:15:21	stdout	      ██║     ███████╗██║██║   ██║
2025/02/27 16:15:21	stdout	      ██║     ██╔════╝██║██╔═══██╗
2025/02/27 16:15:21	stdout	      ██╗     ███████╗██╗ ██████╗
2025/02/27 16:15:21	stdout	
2025/02/27 16:15:21	stdout	───────────────────────────────────────
2025/02/27 16:15:21	stdout	usermod: no changes
2025/02/27 16:15:21	stdout	[migrations] no migrations found
2025/02/27 16:15:21	stdout	[migrations] started
2025/02/27 16:06:33	stdout	The X11 connection broke (error 1). Did the X11 server die?
2025/02/27 16:06:33	stdout	X connection to :1 broken (explicit kill or server shutdown).
2025/02/27 16:06:33	stdout	 2025-02-27 16:06:33,194 [PRIO] Connections: closed: @172.17.0.1_1740632368.750008::websocket (Clean disconnection)
2025/02/27 15:59:28	stdout	 2025-02-27 15:59:28,767 [PRIO] Connections: accepted: @172.17.0.1_1740632368.750008::websocket
2025/02/27 15:59:28	stdout	 2025-02-27 15:59:28,749 [INFO] websocket 1: got client connection from 127.0.0.1
2025/02/27 15:59:27	stdout	 2025-02-27 15:59:27,968 [PRIO] Connections: closed: @172.17.0.1_1740631517.183735::websocket (Clean disconnection)
2025/02/27 15:45:17	stdout	 2025-02-27 15:45:17,202 [PRIO] Connections: accepted: @172.17.0.1_1740631517.183735::websocket
2025/02/27 15:45:17	stdout	 2025-02-27 15:45:17,182 [INFO] websocket 0: got client connection from 127.0.0.1
2025/02/27 15:45:11	stdout	qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
2025/02/27 15:45:04	stdout	Obt-Message: Xinerama extension is not present on the server
2025/02/27 15:45:04	stdout	[mi] mieq: warning: overriding existing handler (nil) with 0x564658c4c930 for event 3
2025/02/27 15:45:04	stdout	[mi] mieq: warning: overriding existing handler (nil) with 0x564658c4c930 for event 2
2025/02/27 15:45:04	stdout	Errors from xkbcomp are not fatal to the X server
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86NavInfo
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86SidevuSonar
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86ClearvuSonar
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86TraditionalSonar
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86RadarOverlay
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86DualRangeRadar
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86SingleRangeRadar
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86FishingChart
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86NavChart
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86Sos
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86MarkWaypoint
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86AutopilotEngageToggle
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86PreviousElement
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86NextElement
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86CameraAccessToggle
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86CameraAccessDisable
2025/02/27 15:45:04	stdout	> Warning:          Could not resolve keysym XF86CameraAccessEnable
2025/02/27 15:45:04	stdout	The XKEYBOARD keymap compiler (xkbcomp) reports:
2025/02/27 15:45:04	stdout	
2025/02/27 15:45:04	stdout	Underlying X server release 12101012
2025/02/27 15:45:04	stdout	See http://kasmweb.com for information on KasmVNC.
2025/02/27 15:45:04	stdout	Copyright (C) 1999-2018 KasmVNC Team and many others (see README.me)
2025/02/27 15:45:04	stdout	Xvnc KasmVNC 1.3.3 - built Feb 22 2025 19:05:16
2025/02/27 15:45:04	stdout	
2025/02/27 15:45:04	stdout	_XSERVTransmkdir: ERROR: euid != 0,directory /tmp/.X11-unix will not be created.
2025/02/27 15:45:03	stdout	pa_context_connect() failed: Connection refused
2025/02/27 15:45:03	stdout	Connection failure: Connection refused
2025/02/27 15:45:03	stdout	pa_context_connect() failed: Connection refused
2025/02/27 15:45:03	stdout	Connection failure: Connection refused
2025/02/27 15:45:03	stdout	[ls.io-init] done.
2025/02/27 15:45:03	stdout	[custom-init] No custom files found, skipping...
2025/02/27 15:45:02	stdout	    
2025/02/27 15:45:02	stdout	───────────────────────────────────────
2025/02/27 15:45:02	stdout	Build-date: 2025-02-26T06:41:34+00:00
2025/02/27 15:45:02	stdout	Linuxserver.io version: v7.26.0-ls324
2025/02/27 15:45:02	stdout	───────────────────────────────────────
2025/02/27 15:45:02	stdout	User GID:    100
2025/02/27 15:45:02	stdout	User UID:    1027
2025/02/27 15:45:02	stdout	
2025/02/27 15:45:02	stdout	───────────────────────────────────────
2025/02/27 15:45:02	stdout	GID/UID
2025/02/27 15:45:02	stdout	───────────────────────────────────────
2025/02/27 15:45:02	stdout	
2025/02/27 15:45:02	stdout	https://www.linuxserver.io/donate/
2025/02/27 15:45:02	stdout	To support LSIO projects visit:
2025/02/27 15:45:02	stdout	
2025/02/27 15:45:02	stdout	───────────────────────────────────────
2025/02/27 15:45:02	stdout	   Brought to you by linuxserver.io
2025/02/27 15:45:02	stdout	
2025/02/27 15:45:02	stdout	      ╚══════╝╚══════╝╚═╝ ╚═════╝
2025/02/27 15:45:02	stdout	      ███████╗███████║██║╚██████╔╝
2025/02/27 15:45:02	stdout	      ██║     ╚════██║██║██║   ██║
2025/02/27 15:45:02	stdout	      ██║     ███████╗██║██║   ██║
2025/02/27 15:45:02	stdout	      ██║     ██╔════╝██║██╔═══██╗
2025/02/27 15:45:02	stdout	      ██╗     ███████╗██╗ ██████╗
2025/02/27 15:45:02	stdout	
2025/02/27 15:45:02	stdout	───────────────────────────────────────
2025/02/27 15:45:00	stdout	[migrations] no migrations found
2025/02/27 15:45:00	stdout	[migrations] started

[github-actions]

Thanks for opening your first issue here! Be sure to follow the relevant issue templates, or risk having this issue marked as invalid.

[LinuxServer-CI]

This issue has been automatically marked as stale because it has not had recent activity. This might be due to missing feedback from OP. It will be closed if no further activity occurs. Thank you for your contributions.

[LinuxServer-CI]

This issue is locked due to inactivity