This is an easy one to diagnose, and to fix. When you make an authorization request, that request must include several mandatory parameters (see the article Authorization code + PKCE grant type for more information). As it turns out, response_type is a required parameter; if you forget to include response_type you’ll get an error message like this:
Likewise, scope is a required parameter. Leave out the scope parameter and you’ll get this error:
To avoid these problems, just check your authorization request and make sure it includes all the required parameters.
Updated over 1 year ago