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
* There are four servlet mappings defined for ViewerServlet in the web.xml.
 * <ul>
 * <li>Frameset - Displays the whole web viewer frameset. (Public)</li>
 * <li>Run - Runs the report and displays the output as a stand-alone HTML
 * page, or as a PDF document. (Public)</li>
 * <li>Navigation - Displays the leftside navigation frame that contains the
 * report parameter page. (Internal)</li>
 * <li>Toolbar - Displays the toolbar above the report content. (Internal)</li>
 * </ul>
 * <p>
 * Each public mapping expects some URL parameters,
 * <ul>
 * <li>Frameset
 * <ul>
 * <li>__report</li>
 * <li>__locale</li>
 * <li><i>report parameter</i></li>
 * </ul>
 * <li>Run
 * <ul>
 * <li>__report</li>
 * <li>__format</li>
 * <li>__locale</li>
 * <li>__page</li>
 * <li><i>report parameter</i></li>
 * </ul>
 * </ul>
 * <p>
 * Each URL parameter is described below. <table border=1>
 * <tr>