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
}
		String maxrows = null;
		if ( params.get( MAX_ROWS_KEY ) != null )
			maxrows = (String) params.get( MAX_ROWS_KEY );
		else
			maxrows = ViewerPlugin.getDefault( ).getPluginPreferences( )
					.getString( WebViewer.PREVIEW_MAXROW );
		return createURL( servletName, report, format, true, resourceFolder,
				maxrows );
	}
	/**
	 * Create web viewer url to run the report.
	 * 
	 * @param servletName
	 *            servlet name to viewer report
	 * @param report
	 *            report file name
	 * @param format
	 *            report format
	 * @param resourceFolder
	 *            the resource folder
	 * @param maxrows
	 *            max rows limited
	 * @return valid web viewer url
	 */
	private static String createURL( String servletName, String report,
			String format, boolean inDesigner, String resourceFolder,
			String maxrows )
	{
		String encodedReportName = null;