Bug 166001 The webpage can't be found in WebView, if "WebViewer.startup( null );" is not called.
Now I'm using a SVG viewer to preview report in designer, it need not a HTTP server. So I removed "WebViewer.startup( null );" from designer's initial process, but I found those "web view as ..." all can not open a web page.
viewer/org.eclipse.birt.report.viewer/src/org/eclipse/birt/report/viewer/utilities/WebViewer.java
* @param browser
	 *            SWT browser
	 */
	public static void startup( Browser browser )
	{
		startWebApp( );
	}
	/**
	 * Displays the specified url.
	 * 
	 * @param report
	 *            report report
	 * @param format
	 *            report format
	 */
	public static void display( String report, String format )
	{
		display( report, format, true );
	}
	/**
	 * Displays the specified url.
	 * 
	 * @param report
	 * @param format
	 * @param allowPage
	 */
	public static void display( String report, String format, boolean allowPage )
	{
		String root = null;
		if ( WebViewer.PDF.equalsIgnoreCase( format ) )