IFrameElement iframe = Document.get().createIFrameElement();
iframe.setAttribute("tabIndex", "-1");
iframe.setAttribute("style", "position: absolute; width: 0; height: 0; border: 0");
iframe.setAttribute("src", "javascript:''");
Element body = RootPanel.get().getElement();
body.appendChild(iframe);
setFrameLocation(resourceName, iframe, callback);
}
@SuppressWarnings("unused")
private void dispatch(NativeEvent event, AsyncXmlLoaderCallback callback) {