Describe the bug
Connecting to a Jellyfin instance listening on a subpath doesn't work.
To Reproduce
Expected behavior
The connection succeeds.
Logs
D/TimberLogger: Adding request to queue: https://<snip>/jellyfin//System/Info/Public?format=json
I/TimberLogger: Response received from: https://<snip>/jellyfin//System/Info/Public?format=json
E/MainActivity$initialize: Received WebView HTTP 404 error: null - https://<snip>/web/index.html
E/MainActivity$initialize: Received WebView HTTP 404 error: null - https://<snip>/svg/404.svg
Screenshots

System (please complete the following information):
When you open https://<server>/jellyfin/ in your browser will it redirect correctly to the web interface or not?
Ah that was indeed the issue. It showed an 404 error.
After fixing the BaseUrl setting and updating the Nginx reverse proxy config it works.
Most helpful comment
Ah that was indeed the issue. It showed an 404 error.
After fixing the
BaseUrlsetting and updating the Nginx reverse proxy config it works.