If I click on link in the web page to open in new window then new tab is created but web page is not loaded in new tab.

Test program:

import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Scene;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.paint.Color;
import javafx.scene.web.PopupFeatures;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class Test {

    private static void initAndShowGUI() {
        JFrame frame = new JFrame("Swing and JavaFX");
        final JFXPanel fxPanel = new JFXPanel();
        frame.add(fxPanel);
        frame.setSize(750, 500);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        Platform.runLater(() -> {
            initFX(fxPanel);
        });
    }

    private static void initFX(JFXPanel fxPanel) {
        Scene scene = createScene();
        fxPanel.setScene(scene);
    }

    private static Scene createScene() {
        TabPane root = new TabPane();
        Scene scene = new Scene(root, Color.ALICEBLUE);
        root.getTabs().add(new Browser(root));
        return (scene);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            initAndShowGUI();
        });
    }
}

class Browser extends Tab {

    final WebView browser = new WebView();
    final WebEngine webEngine = browser.getEngine();
    final TabPane pane;

    public Browser(TabPane tabPane) {
        pane = tabPane;
        webEngine.load("http://www.google.com");
        setContent(browser);
        setText("tab");

        webEngine.setCreatePopupHandler((PopupFeatures config) -> {
            Browser b = new Browser(pane);
            pane.getTabs().add(b);
            return b.webEngine;
        });
    }
}