title: Use Facebook APP Authentication to automatically login to Mobile Website?
body: <p>Is there anyway to access the native Facebook application (on iOS or Android) to retrieve login authentication on a mobile website that has permissions already?</p>
  
  <p>The cache and data of browser has been emptied.</p>
  
  <p>User hits <a href="http://example.com/" rel="nofollow">http://example.com/</a></p>
  
  <p>example.com checks to see if there is a token in browser to identify the user and see if user is logged into Facebook. this fails</p>
  
  <p>example.com accesses the Facebook app and gets user token?</p>
  
  <p>User is logged onto the site automatically.</p>
  
  <p>I know this is more then likely impossible however I thought I would check with the experts.</p>