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
public static final String INIT_PARAM_VIEWER_MAXROWS = "BIRT_VIEWER_MAX_ROWS"; 
	/**
	 * Context parameter name that if always overwrite generated document file.
	 */
	public static final String INIT_PARAM_OVERWRITE_DOCUMENT = "BIRT_OVERWRITE_DOCUMENT"; 
	/**
	 * Context parameter name that defines BIRT viewer configuration file.
	 */
	public static final String INIT_PARAM_CONFIG_FILE = "BIRT_VIEWER_CONFIG_FILE"; 
	/**
	 * Context parameter name that if support print on the server
	 */
	public static final String INIT_PARAM_PRINT_SERVERSIDE = "BIRT_VIEWER_PRINT_SERVERSIDE"; 
	/**
	 * UTF-8 encode constants.
	 */
	public static final String UTF_8_ENCODE = "UTF-8"; 
	/**
	 * ISO-8859-1 encode constants.
	 */
	public static final String ISO_8859_1_ENCODE = "ISO-8859-1"; 
	/**
	 * Separator that connects the query parameter values.
	 */
	public static final String PARAMETER_SEPARATOR = "&"; 
	/**
	 * The character to start the query string in the url.
	 */
	public static final String QUERY_CHAR = "?"; 
	/**