Ajax success Callback in Firefox4

Ajax success Callback in Firefox4

Hi,
today I updated my Firefox from 3.5 to 4.0b3 and it seems that the AJAX success callback is not longer fired.
Firebug shows the correct response but the function is never called. Is this a Problem of the FF Beta, or is Jquery responsible for this?

Here is my Script

  1.         $.ajax({
              url: 'ajax.php',
              success: function(data) {
                     console.log('success');
              }
            });





Best regards,
Elmowater