Issues connecting to Collabora - Unraid with Cloudflare Tunnels

[Tim_Green]

I have just recently installed Nextcloud and Collabora on an Unraid NAS.

Both are set up via Cloudflare tunnels:

Nextcloud - https://nextcloud.*****.com → http://ip-address:8080
Collabora - https://collabora.*****.com → http://ip-address:9980

Both Nextcloud and Collabora appear to be working correctly when i go to these URLs, but I get the following error message in Nextcloud on the Office settings page.

Your browser has been unable to connect to the Collabora server: http://collabora.***.com

This URL is determined on the Collabora server either from the configured URL or the server_name parameter in coolwsd.xml.

(Note, I have inputted the URL as https, not http as appears in the error message)

[wwe]

hi @Tim_Green welcome to the community

Please review

• Collabora integration guide
• 101: reverse proxy

I would guess something is wrong with trusted_proxies and/or X-FORWARDED-* http headers. cloudflare magic is known to brake things - try first without fancy stuff like script compression etc…

[Tim_Green]

Hi,

Thanks so much!

I’ve reviewed my Trusted Proxies - which I hadn’t set up properly - and disabled all “CloudFlare magic”, but with no luck.

Not really sure how to start when it comes to troubleshooting the http headers…

[wwe]

the continue with troubleshooting steps from collabora integration guide and review error messages, logs etc.

[Tim_Green]

Aha! The hosting/discovery XML document in Collabora showed URLs with the http:// not https://.

I found the solution on this Stack Exchange

I needed to change the extra parameters variable in docker from extra_params=--o:ssl.enable=false to extra_params=--o:ssl.enable=false --o:ssl.termination=true, and it fixed the issue.