title: Blank popup with FB connect
body: <p>I've implemented the facebook connect using Javascript SDK. The authentication works fine when the user I'm trying to authenticate is not logged into facebook. But when he's already logged into facebook the login popup never closes. The url of the popup starts with "http://static.ak.fbcdn.net/connect/xd_proxy.php#cb=....."</p>
  
  <p>This happens both on Firefox 3.5 and on Chrome.
  Any suggestions? Do I need to set any extra parameters while connecting to Facebook?</p>