iframe.getStyle().setWidth("100%");
iframe.getStyle().setHeight("100%");
iframe.setAttribute("sandbox", "allow-same-origin allow-scripts");
iframe.setSrc(url);
sizer.appendChild(iframe);
final RemovalHandler[] remover = new RemovalHandler[1];
gwtc.header = GwtcModuleControlView.create(new GwtcController() {
@Override
public void onReloadClicked() {