Hi Sir,
I had some issue when use proxy host for qbittorrent.
All other container working great except qbittrrent.
It's show Unauthorized on browser and curl qbittorrent result as below:
curl: (6) Could not resolve host: qbittorrent
**EDIT**
ok... find the solution
I've tried to Uncheck Enable Cross-Site Request Forgery (CSRF) protection and... it works!
**EDIT2**
And again, find solution in github without uncheck Enable Cross-Site Request Forgery (CSRF) protection:
only need: proxy_set_header Referer '';
https://github.com/qbittorrent/qBittorrent/issues/6962#issuecomment-752961894