URLRequest/URLLoader Cache Problem

I use URLLoader and URLRequest to load XML file, but it caches always :frowning:

var loader:URLLoader;

loader = new URLLoader();
loader.addEventListener(Event.COMPLETE, xmlLoaded);

var request:URLRequest = new URLRequest("data.xml");
loader.load(request);

i was tring to do trick like in AS2 but it didnt works


var request:URLRequest = new URLRequest("data.xml?var=somerandomnums");

can anyone help?