Bug 147407 Preview the attached report in the web viewer first time and then click the TOC button will cause NPE error
Description: It just can be reprouduced at first time preview. Step to reproduce: 1. please use attach report file 2. preview it in the web viewer 3. click the "Toggle table of contents" button Actual result: As the atteched screenshot shows,There is a NPE error.And if you preview it in the Web viewer again, the phenomenon is disappear.But reopen the eclipse and preview it at first time, it will be occured.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
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	public static boolean getSVGFlag( HttpServletRequest request )
	{
		boolean svg = false;
		if ( "true".equalsIgnoreCase( getParameter( request, PARAM_SVG ) ) ) 
		{
			svg = true;
		}
		return svg;
	}
	/**
	 * Get web application locale.
	 * 
	 * @return report locale
	 */
	public static Locale getWebAppLocale( )
	{
		return webAppLocale;
	}
	/**
	 * Get current working folder.
	 * 
	 * @return Returns the workingFolder.
	 */
	public static String getWorkingFolder( )
	{
		return workingFolder;
	}
	/**
	 * This function is used to encode an ordinary string that may contain