Resources not refreshing after upload

Hi,

In Firefox, when I upload a file in the filebrowser it is not doing a correct reload of resource frame..
I've checked this in Explorer and it works fine...

I've added alert commands to trace it, and I'm running server indebug mode, and I can see, that url called is just fine, but server does not receive the call...

this line, is fine:
oXmlHttp.open( "GET", urlToCall, bAsync ) ;
urlToCall is correct.. but oXmlHttp.responseXML is returning null...

it happens when Refresh() function on frmresources is called..