Authorization Code Flow & redirect_uri_mismatch Errors: Monitoring & Fixing
If you’ve implemented OAuth 2.0 using the Authorization Code Flow, chances are you’ve encountered the redirect_uri_mismatch error at least once. It’s one of the most common (and most misunderstood) OAuth failures teams face when integrating authentication into web applications. On paper, the error is simple. The authorization server compares the redirect URI sent in the request with the redirect URIs registered for the application.