I've followed the instructions on the Developer Account Help pages: "Configure Sign in with Apple for the web" and "Create a Sign in with Apple private key". I'm at the point where I no longer see the "Invalid redirect_uri" error, which makes me think the redirect uri is now correctly configured. However, after clicking on the Sign in button, then authorizing the app to get my Apple Id credentials, nothing happens. I'm not redirected anywhere. I check the server logs - there's no sign of any incoming HTTP request to the redirect uri. How do I even debug this problem? I've been testing with Safari on an IPad.
I've identified one possible problem: the domain has not been verified. I haven't downloaded any verification file and uploaded it on the server. I haven't been able to see any download link either, or any other way around it. The private key has also been unused but it's irrelevant to the problem as the request doesn't ever arrive at the server.
I've identified one possible problem: the domain has not been verified. I haven't downloaded any verification file and uploaded it on the server. I haven't been able to see any download link either, or any other way around it. The private key has also been unused but it's irrelevant to the problem as the request doesn't ever arrive at the server.