Docker install fails as soon as its behind a proxy

Thanks

  • Yes I point it to the proper IP (Docker internal) with proper Port (Docker internal 3001)
  • Am I behind a CGNAT? Well most likely. My (home) internet is actually a LTE connection distributed via portable router (I know it is insane, but hey, it works)

The thing is the same setup works fine for a plethora (around 20) other services I self host, many of which are easily more complex than SB (WP Docker can be a REAL pain, for example). I am pretty sure I did not misconfigure anything, also because it “works” - meaning I can reach the thing, just that the thing breaks inside itself (JS errors, etc)

There is not much config about the NPM to share - it is literally just GUI settings > new proxy > http + Local DockerIP:3000, support websocket. That’s it

Now… I just saw this:

Apparently SB cannot be installed in a subdomain, so that is probably the issue? I do run this on notes.domain.tld, as I do not want to buy a dedicate domain just for the SB instance.

Apologies for the ping - @zef, can you confirm my above described attempt will simply not work on a subdomain? I mean, if that is not supported, I think the whole shebang between Cloudflare and my local docker are not the issue, rather that the instance is called over a subdomain is the problem?

Thanks!