title: Facebook oauth display popup
body: <p>I use this
   \ a class="fb-button" href="https://www.facebook.com/dialog/oauth?client_id=184082381694xx8&amp;redirect_uri=https://xxxxxxx.com&amp;display=popup" \
  although it seems to changing the way the oauth displayed it doesn't open as a pop up but
  as a new tab.
  How can I do a popup facebook login like this one <a href="https://www.airbnb.com/login" rel="nofollow">https://www.airbnb.com/login</a> ?</p>