title: unsupported_response_type error for Android Google authentication
body: <p>I am trying to authenticate my app user with his/her google account but after the sign in, it shows up unsupported_response_type on the screen. The authentication was success but I have no idea why the response is not redirecting to the required screen.</p>
  
  <p>Is it fault on my code implementation side or is it some authentication problem with google. I did it using OAuth2Authenticator class.</p>
  
  <p>with client id, scope, authorizeUrl and redirectUrl parameters.</p>