title: Check if user likes page via Graph API
body: <p>I have seen a few similar questions but I think this is new...</p>
  
  <p>I am trying to add a popover on a blog that will contain a Facebook like button for a Facebook page and wil only show if the user does not already like the Facebook page.</p>
  
  <p>Reading through the documentation this should be achievable with the Graph API pages.isFan method but does this require the user to give permissions? If so would it be possible to not have the app request permissions but rather fail gracefully?</p>
  
  <p>Any help much appreciated.</p>