title: CSS doesn't work only inside Facebook canvas
body: <p>I've created a Facebook application in Laravel 4 (hosted on Heroku platform). </p>
  
  <p>On my local computer everything works fine. When I open the URL of the application directly on Heroku domain, everything works fine. But when I open it inside Facebook Canvas, CSS doesn't work. </p>
  
  <p>Elements on the page, when inspected with Firebug, don't show any CSS, like it doesn't exist. But when I go to the option "View Frame Source" to view the iFrame code, CSS looks like it is loaded correctly?? CSS file is in public/css folder. </p>
  
  <p>Anyone had similar problem? </p>