Bug 158935 [2.2.0][Smoke]PDF can not preview anything by IE
Details: [2.2.0][Smoke]PDF can not preview anything by IE Step: 1.New a report and add a label 2.Preview as PDF Actual resutl: Can not preview anything Excepted resutl: Preview the label by PDF
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/servlet/ViewerServlet.java
* <td><i>reportParam</i></td>
 * <td>User defined report parameter.</td>
 * <td>As specified in the report design.</td>
 * <td>As specified in the report design.</td>
 * </tr>
 * </table>
 * <p>
 */
public class ViewerServlet extends BirtSoapMessageDispatcherServlet
{
	/**
	 * TODO: what's this?
	 */
	private static final long serialVersionUID = 1L;
	/**
	 * Local initialization.
	 * 
	 * @return
	 */
	protected void __init( ServletConfig config )
	{
		BirtReportServiceFactory.init( new BirtViewerReportService( config ) );
		
		viewer = new FramesetFragment( );
		viewer.buildComposite( );
		viewer.setJSPRootPath( "/webcontent/birt" ); 
	}
	/**
	 * Init context.
	 *