Nextcloud on 4433 port and Richdocuments, error in logs

My Nextcloud server is not on port 433, but on 4433. Everything works, but errors constantly appear in the logs:

[richdocuments] error: Failed to fetch the Collabora capabilities endpoint: Client error: GET https://cloud.grighome.ru/apps/richdocumentscode/proxy.php?req=/hosting/capabilities resulted in a 403 Forbidden response:

403 Forbidden

403 Forbidden


Web serv (truncated...)

[richdocuments] error: Failed to fetch the Collabora capabilities endpoint: Client error: GET https://cloud.grighome.ru/apps/richdocumentscode/proxy.php?req=/hosting/capabilities resulted in a 403 Forbidden response:

403 Forbidden

403 Forbidden


Web serv (truncated...)

Is it possible to specify the port in the configuration?

Collabora built-in learn it’s config from proxy headers - please ensure your proxy adds “FORWARDED” proxy headers. I don’t recall the one for the port but there is one as well…