I have been implementing Apple and Google sign in on Android and iOS.
For both login processes I can launch them and complete them. When the process should hand back to Supabase an error bubbles up of:
Status Code 530 Error 1016
I have added a custom domain. It is verified and active.
I couldn't find any references to these error codes in the docs or via AI in Supabase.
The fact that the same error code occurs for both social sign ins feels like less of a third party issue.
These codes do appear in Cloud flare DNS. I don't use CF so assume Supabase does. My working theory is the custom domain has failed somewhere in its setup.
I have tried hitting the /Auth/v1 path directly via curl but that also yeilds a 530.
Supabase gives you the tools, documentation, and community that makes managing databases, authentication, and backend infrastructure a lot less overwhelming.