 <p>I suspect the problem you're having is related to this issue: <a href="http://stackoverflow.com/questions/8025082/facebook-authentication-in-a-uiwebview-does-not-redirect-back-to-original-page-o">Facebook authentication in a UIWebView does not redirect back to original page on my site asking for auth</a></p> <p>Specifically, the standard Facebook web login process launches a new browser window dialog, and dispatches a message back to the opener to indicate login success for the redirect to occur.</p> <p>Quoting a passage in the linked SO, "UIWebView doesn't support multiple windows so it can't postMessage back to your original page since it's no longer loaded."</p>