title: Unable to extract user_id from google API
body: <p>I have a working google-app-engine server written in Python. All HTTP requests are handled perfectly, except for when I try to register a google-user to the server, when I call the users.get_current_user() I get None in the return value.</p>
  
  <p>Is there anything I need to enable on my google developer console? </p>
  
  <ul>
  <li>The same app can register to another server with the exact same API (written by other team).</li>
  </ul>
  
  <p>Thanks in advance,</p>