@Override
        public boolean getAuthCredentials(CefBrowser browser,
                                          String origin_url,
                                          boolean isProxy,
                                          String host,
                                          int port,
                                          String realm,
                                          String scheme,
                                          CefAuthCallback callback)
        {
          return myRequestHandler.handleBooleanFirst(browser, handler -> {
            return handler.getAuthCredentials(browser, origin_url, isProxy, host, port, realm, scheme, callback);
          });
        }
@Override
        public boolean getAuthCredentials(CefBrowser browser,
                                          String origin_url,
                                          boolean isProxy,
                                          String host,
                                          int port,
                                          String realm,
                                          String scheme,
                                          CefAuthCallback callback)