title: Error when navigating to user auth page
body: <p>The facebook C# SDK generates an url that looks like this:</p>
  
  <p><code>http://m.facebook.com/logout.php?next=http://www.facebook.com/dialog/oauth/?response_type=token&amp;display=popup&amp;scope=user_about_me&amp;client_id={MY APP ID}&amp;redirect_uri=http://www.facebook.com/connect/login_success.html&amp;confirm=1</code></p>
  
  <p>(obviously I've set the APP id in the real code). </p>
  
  <p>Problem is that the lougout page presents a very generic error message "An error occurred. Please try again later.". If I cut the oauth part out and navigate to that, oauth works fine. But it seems like the NEXT parameter isn't really panning out. </p>
  
  <p>Any pointers? This is with the latest 5.0.9 (BETA) build of the SDK. </p>