* @param chain The filter chain
     * @throws IOException If an I/O error occurs
     * @throws ServletException If a servlet error occurs
     */
    @Override
    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
            throws IOException, ServletException {
        final WebApiManagerFactory webApiManagerFactory = ComponentUtil.getWebApiManagerFactory();

    /**
     * HTTP OPTIONS method constant used for CORS preflight requests.
     */
    protected static final String OPTIONS = "OPTIONS";

    @Override
    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
            throws IOException, ServletException {
        final HttpServletRequest httpRequest = (HttpServletRequest) request;

     * @throws IOException if an I/O error occurs during processing
     * @throws ServletException if a servlet error occurs
     */
    @Override
    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
            throws IOException, ServletException {
        final HttpServletRequest req = (HttpServletRequest) request;