@simon thanks for you reply,
that had been confirmed several time by myself,
and I also have a production test site which was hosted on the parent domain of this discourse site. if you can take a look this [link redacted]
to test the production flow I updated the discourse Connect URL to “https://domainsite.com/login” please feel free to login with google provider and have a test. In the inspect console log you will see the error and the response I printed out, which is 404
since im just doing the POC if you don’t mind can leave me your email then i can set you to admin for investigating the configurations on my discourse site closely. Again really appreciate your time and help