DEV: Use canonical hostname for omniauth callbacks (#33102)

davidtaylorhq · web-flow · commit 6b5dea22f94d · 2025-06-06T15:35:48.000+01:00
In production, the enforce_hostname middleware overwrites the HTTP_HOST
env using `Discourse.base_url_no_prefix`, which takes into account any
configured protocol/hostname/post overrides.

That middleware is not used in development, so if we want omniauth to
respect any host/port overrides, we need to configure the 'full host'
directly.
diff --git a/config/initializers/009-omniauth.rb b/config/initializers/009-omniauth.rb
@@ -52,3 +52,5 @@
 
   OmniAuth::FailureEndpoint.call(env)
 end
+
+OmniAuth.config.full_host = Proc.new { Discourse.base_url_no_prefix }
