Login loop on Beszel when deployed behind Authelia

[JuanMM94]

When Beszel is deployed behind Authelia as a forward auth middleware, login appears to succeed but immediately fails with "Failed to authenticate / Please log in again."

If Authelia's forward auth is protecting all routes including /api/*, it intercepts this request and returns a 303 redirect instead of passing it through to Beszel breaking the session before it starts.

I added bypass rule in Authelia for Beszel's API endpoints, placed before any wildcard domain rules:

- domain: 'beszel.example.com'
  resources:
      - '^/api/.*$'
  policy: 'bypass'

This worked for me at least. It should go before the catch-all rules.

[derrickb]

Does this fix the same issue as this PR? Looks like a cleaner way to address it potentially.

[derrickb]

Removed the fix from that PR locally and tried this bypass rule and it worked. Might be best to switch over to using this method so it keeps the solution focused.

[JuanMM94]

Sorry, I'm running an older version of the template which didn't have that fix so that's why it wasn't working for me. I agree though that this solution is a bit more focused than #76 . I'd switch to this one.