Collabora - ssl / reverse proxy setup when on different domain and server than NC

[wwe]

please review this troubleshooting guide and take a look at this thread and follow references provided:

Collabora/CODE not working with NC 24.0.3 in Docker

You find detailed example here: the referenced “green mark” in Nextcloud Office settings only shows the connection form Nextcloud to Collabora works, it doesn’t show reverse connection neither client to Collabora… see this post As I see you point your Nextcloud to https://nextcloudoffice:9980 - which is almost never reachable from the client… I would recommend you to use real public domain name and setup valid TLS certificates for both Nextcloud and Collabora… and point Nextcloud to the pub…