final Node transformTarget = target;
logger.log(Level.FINE, "Aynchronous GET for: " + asyncSourceURI);
final HTTPHandler hr = new HTTPHandler();
hr.doGet(asyncSourceURI, new RequestCallback() {
public void onError(Request request, Throwable exception) {
//hr.setErrorMessage(exception.getMessage());
String msg = "HTTP Error " + exception.getMessage() + " for URI " + URI;
handleException (new RuntimeException(msg), "onError");