Documents won't load on AIO

[thegrasshopper104]

Describe the bug
Since I updated to 10.1 or 10.2 office documents just show an endless spinner. (My configuration didn't change otherwise)
AIO version: Nextcloud AIO v10.4.0

[index] Error: Call to a member function xpath() on false in file '/var/www/html/custom_apps/richdocuments/lib/WOPI/Parser.php' line 41
	POST /apps/richdocuments/token
	from 192.168.0.215 by aronkvh at 2025. jan. 21. 23:42:58
In settings, the Office page says

Could not establish connection to the Collabora Online server.
Failed to connect to the remote server: cURL error 28: Connection timed out after 5002 milliseconds (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://mydomainname.com/hosting/discovery

To Reproduce
Try opening any office document.

Client details:
Happens on desktop and mobile, any browser

Server details

Operating system: Ubuntu 22.04.5 LTS

Web server: Apache(AIO)

Nextcloud version: Nextcloud Hub 9 (30.0.5)

Version of the richdocuments app: 8.5.3

Version of Collabora Online

Configuration of the richdocuments app

{
    "apps": {
        "richdocuments": {
            "wopi_allowlist": "🟦🟦🟦🟦,127.0.0.1\/8,192.168.0.0\/16,172.16.0.0\/12,10.0.0.0\/8,fd00::\/8,::1,104.21.67.47,2606:4700:3031::ac43:d584,🟩🟩🟩🟩",
            "types": "prevent_group_restriction",
            "wopi_callback_url": "",
            "public_wopi_url": "⬛⬛⬛⬛",
            "installed_version": "8.5.3",
            "wopi_url": "⬛⬛⬛⬛",
            "disable_certificate_verification": "",
            "enabled": "yes"
        }
    }
}

Output from curl -vvv https://$NC_DOMAIN:443/hosting/discovery

22:53:38.033714 [0-x] == Info: [READ] client_reset, clear readers
22:53:38.054734 [0-0] == Info: Host ⬛⬛⬛⬛:443 was resolved.
22:53:38.054928 [0-0] == Info: IPv6: (none)
22:53:38.055119 [0-0] == Info: IPv4: {{publicip}}
22:53:38.055283 [0-0] == Info: [HTTPS-CONNECT] added
22:53:38.055486 [0-0] == Info: [HTTPS-CONNECT] connect, init
22:53:38.055662 [0-0] == Info: [HTTPS-CONNECT] connect, check h21
22:53:38.055863 [0-0] == Info: Trying {{publicip}}:443...
22:53:38.056249 [0-0] == Info: [HTTPS-CONNECT] connect -> 0, done=0
22:53:38.056545 [0-0] == Info: [HTTPS-CONNECT] adjust_pollset -> 1 socks
22:53:39.057304 [0-0] == Info: [HTTPS-CONNECT] connect, check h21
22:53:39.057458 [0-0] == Info: [HTTPS-CONNECT] connect -> 0, done=0
22:53:39.057748 [0-0] == Info: [HTTPS-CONNECT] adjust_pollset -> 1 socks
22:53:40.036040 [0-0] == Info: [HTTPS-CONNECT] connect, check h21

Report in the AIO repo

[elzody]

I am unable to reproduce this on my end using a non-AIO setup. In the AIO issue you filed, I saw in the Collabora logs that there are many errors that the Collabora server is unable to fetch the font remote config settings. Can you please issue a request to https://cloud.example.com/apps/richdocuments/settings/fonts.json and see if it returns a proper response?

I am thinking somehow the connectivity between the Collabora container (or however you have it set up) and the Nextcloud container cannot communicate well. We made no significant changes to this in richdocuments 8.5.3, as far as I am aware, and there have not been updates since. So, if it worked before your upgrade of AIO with richdocuments 8.5.3, I am not sure it's really a bug. At least, for the moment, I'm not convinced.

Additionally, is there any more information you can send, like the Nextcloud logs or browser network logs specifically?