Trying to use Facebook OAuth with the SafariViewController. First I open the authURL with SafariViewController, which if the user is logged in to Facebook on Safari, will redirect them and return an OAuth URL with the token for that specific service, e.g. Instagram RESPONSE: https://www.facebook.com/connect/login_success.html#access_token=BLAHTOKENRESPONSE&expires_in=5114338 When SafariViewControl