HTML5 Drag'n'Drop seems to be not working in Lombard builds

HTML5 Drag and Drop feature seems to be not working in Lombard builds. E. g., I've tried http://getjfx.us.oracle.com/hudson/view/3.0/job/3.0-text-sandbox/62/label=windows-amd64-30/artifact/artifacts/bundles/release/ (as it has the latest date of successful build).

The following application can be used for reproducing the issue:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;

public class Main extends Application {

    WebEngine e;

    @Override
    public void start(Stage stage) throws Exception {
        System.setProperty("proxyHost", "www-proxy.ru.oracle.com");
        System.setProperty("proxyPort", "80");
        
        WebView wv = new WebView();
        e = wv.getEngine();
        Scene scene = new Scene(wv);
        
        e.load("http://html5demos.com/drag");
        
        System.out.println(com.sun.javafx.runtime.VersionInfo.getRuntimeVersion());
        stage.setScene(scene);
        stage.show();
    }
}

I'm also attaching a test page which works in Chrome, but doesn't in WebNode.