title: Get Facebook public profile information
body: <p>I am wondering if you can get the public profile information of the user if they don't authorize your app. I am using Facebook login inside a page tab and a canvas page. Is there a way to get the user Facebook ID if they don't accept the login permission dialog? I know if i am able to find you the userid i can fetch the public profile.</p>
  
  <p>Thanks</p>