[Котяра]

ага.

var loader:Loader = new Loader();
var addedDefinitions:LoaderContext = new LoaderContext();
addedDefinitions.checkPolicyFile = true;
addedDefinitions.securityDomain = SecurityDomain.currentDomain;
addedDefinitions.applicationDomain = ApplicationDomain.currentDomain;
var request:URLRequest = new URLRequest(myUrl);
loader.load(request, addedDefinitions);