I've been using xdebug to do php debugging (netbeans or eclipse). I am usually able to inspect variables OK. However, sometimes when I expand a disclosure triangle for a variable -- typically when the client is making an AJAX call -- it will result in an empty response being returned and causing the AJAX call to fail.

Has anyone run into this? Is there a way to make PHP debugging with xdebug more robust? (Not being able to inspect variables defeats the purpose of a debugger.

Thanks