openQA Project (public)

It is simply that 8080 is not a standard port (either 80 or 443) and therefore the setup is considered to be not behind a reverse proxy.

If you would have used ssh -L 80:localhost:80 <target> or ssh -L 443:localhost:80 <target> it would've worked.

I suppose we could add a config option to explicitly specify whether the instance is supposed to be accessed directly or from a reverse proxy (and still default to our current auto-detection based on ports).