Bug 179636 [Smoke] Chart can not be previewed [0001]
Description: Chart can not be previewed Build number: 2.2.0.v20070328-0630 Steps to reproduce: 1. New a chart, preview. Expected result: Chart is displayed correctly. Actual result: Chart can not be previewed. Error log: N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
else if ( IBirtConstants.VAR_OFF.equalsIgnoreCase( flag ) )
		{
			isSupportedPrintOnServer = false;
		}
		
		clearTempFiles( );
		
		isInitContext = true;
	}
	/**
	 * Check whether the viewer is used in designer or not.
	 * 
	 * @param request
	 * @return
	 */
	public static boolean isDesigner( HttpServletRequest request )
	{
		boolean isDesigner = false;
		if ( "true".equalsIgnoreCase( getParameter( request, PARAM_DESIGNER ) ) ) 
		{
			isDesigner = true;
		}
		return isDesigner;
	}
	/***************************************************************************
	 * For export data
	 **************************************************************************/
	/**
	 * Check whether the request is to get image.
	 *