title: blank white screen after FB login via web app?
body: <p>I have tried following the FB mobile web "getting started guide" at:
  <a href="https://developers.facebook.com/docs/guides/mobile/web/" rel="noreferrer">https://developers.facebook.com/docs/guides/mobile/web/</a>
  for a web app that I open full-screen on my iphone.</p>
  
  <p>but when I try to login using the fb login page that opens up, I get a blank white screen after I click the "login" button. The user IS logged in though.. I know this because if I close and reopen my web app, I check the login status and try to get some user info, and it works fine...</p>
  
  <p>When I try the same web app in my desktop's chrome or my iphone's safari, the login process is ok... it break only from within the full screen web app.</p>
  
  <p>any ideas?? I'm merely following the sample code from FB :-(</p>
  
  <p>thanks.</p>