Modify a website 'screen capture' program, to remove javascript 'errors'

The program below is designed to do a 'screen capture' of a whole webpage. It uses a text area to accomplish this. The problem is that if the webpage has javascript on it, it will show up as errors. I am looking to modify this program so that the errors are not displayed. If the way to do this is to not use a text area, this is fine. If using a browser would be better, that is ok as well. In the end, I just need the image of the whole web page. The test url (CNN) is just a popular page that has javascript on it. If you could help out, it would be greatly appreciated. If you have any questions, please let me know.

import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.imageio.ImageIO;
import javax.swing.*;
import java.net.*;
 
public class SavingAScrollingComponent
{
    public SavingAScrollingComponent()
    {
        JEditorPane textArea = getTextArea();
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(getUIPanel(textArea), "North");
        f.getContentPane().add(new JScrollPane(textArea));
       
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
       

    }
 
    private void save(Component c)
    {
        int w = c.getWidth();
        int h = c.getHeight();
        BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        c.paint(g2);
        g2.dispose();
        File file = new File("scrollingComponent.png");
        try
        {
            ImageIO.write(image, "png", file);
        }
        catch(IOException ioe)
        {
            System.err.println("write: " + ioe.getMessage());
        }
    }
 
    private JPanel getUIPanel(final JEditorPane ta)
    {
        JButton save = new JButton("save");
        save.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                save(ta);
            }
        });
        JPanel panel = new JPanel();
        panel.add(save);
        return panel;
    }
 
    private JEditorPane getTextArea()
    {
        JEditorPane ta = new JEditorPane();
        ta.setMargin(new Insets(0,5,0,5));
        try
        {
       
          URL file = new URL("http://www.cnn.com/");
             ta.setPage(file);
        }
        catch(IOException ioe)
        {
            System.err.println("read: " + ioe.getMessage());
        }
        return ta;
    }
 
    public static void main(String[] args)
    {
        new SavingAScrollingComponent();
    }
}