title: back url facebook login failed
body: <p>I have developed a facebook login app that worked until yesterday. Today the same app doesn't redirect back to my url after the login with facebook.</p>
  
  <p>The url is
  <a href="http://www.targamy.it/2.0/fbc.php" rel="nofollow">http://www.targamy.it/2.0/fbc.php</a></p>
  
  <p>and the callback stop on a white page on this url:
  <a href="https://www.facebook.com/login.php?login_attempt=1&amp;fbconnect=1&amp;display=page&amp;next=http%3A%2F%2Fwww.targamy.it%2F2.0%2Ffbc.php&amp;req_perms=user_photos%2Cuser_videos%2Cemail%2Cuser_birthday%2Coffline_access%2Cpublish_stream%2Cstatus_update&amp;legacy_return=1" rel="nofollow">https://www.facebook.com/login.php?login_attempt=1&amp;fbconnect=1&amp;display=page&amp;next=http%3A%2F%2Fwww.targamy.it%2F2.0%2Ffbc.php&amp;req_perms=user_photos%2Cuser_videos%2Cemail%2Cuser_birthday%2Coffline_access%2Cpublish_stream%2Cstatus_update&amp;legacy_return=1</a></p>
  
  <p>I didn't change anything and the submission is still active.</p>