title: Facebook iOS SDK - openActiveSessionWithReadPermissions never timeouts
body: <p>I am using the facebook SDK in my application and i am trying to simulate the case the user does not have or loose the internet connection.</p>
  
  <p>So i disconnect from Internet and i call the [FBSession openActiveSessionWithReadPermissions:::] method.</p>
  
  <pre><code>[FBSession openActiveSessionWithReadPermissions:permissions allowLoginUI:YES completionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
      if (error) {
         ....
      } else {
         ....
      }
  }];
  </code></pre>
  
  <p>Unfortunately the call is never timeout...</p>
  
  <p>Does anyone know what i am missing here?</p>