IE9 error in IE9

This morning our game doesn't work on my IE9 computer. The error I am getting:

access denied on 

http://static.ak.fbcdn.net/rsrc.php/v1/yL/r/X3oFUDWWu05.js

      

        
        
        
      

    

When I load this URL in Chrome, FF and IE 8 everything works fine. But in IE9 I have the following error:

'window is undefined'
Error : 800A1391
Execution Error Microsoft JScript

      

        
        
        
      

    

This is a script that I have no control over. I have cleared my cache but I am still getting the error.

Any ideas?