Bug 155766 [Regression]Preview will not refresh the modify in design report
Details: Preview will not refresh the modify in design report Step: 1.New a report design. 2.New a label and input label1. 3.Preview. 4.Switch to Layout and modify the content of label as label2. 5.Preview. Actual result: It preview as "label1" twice. Exception result: Preview "label2" at the second time
viewer/org.eclipse.birt.report.viewer/src/org/eclipse/birt/report/viewer/utilities/WebViewer.java
* @param browser
	 *            SWT browser instance
	 * @param params
	 *            the parameter map to set
	 */
	public static void display( String report, Browser browser, Map params )
	{
		browser.setUrl( createURL( report, params ) );
	}
	/**
	 * Displays the specified url using eclipse SWT browser.
	 * 
	 * @param report
	 *            report report
	 * @param params
	 *            the parameter map to set
	 */
	public static void display( String report, Map params )
	{
		try
		{
			BrowserAccessor.getPreviewBrowser( false ).displayURL(
					createURL( report, params ) );
		}
		catch ( Exception e )
		{
			
		}
	}
}