So about that little crossdomain image loading hack.

on the INIT event of your loader do the following:

var lInfo:LoaderInfo = e.target as LoaderInfo;
var dO:DisplayObject;
try{
dO = lInfo.content as DisplayObject;
} catch(err:SecurityError){
var spt:Sprite = new Sprite();
spt.addChild(lInfo.loader);
dO = spt;
}


Courtesy of @michaelSvendsen