Issue 2840: [Firebug Lite] Synchronous XHR requests

Steps to reproduce

1. Load Firebug Lite
2. Load jQuery
3. Execute the following code:

        $.ajax({
            url: "test.txt",
            complete: function(req, status) {
                if (status == "success") {
                    // this line should be executed
                }
            }
        });
                

Expected Result

• The marked line should be executed, that is, the "complete" callback function should be called
• There should be one log entry in the Console Panel