code: @Override
    public void init(final FilterConfig filterConfig) throws ServletException {
      super.init(filterConfig);
  
      configUrl = filterConfig.getInitParameter("xslt");
  
      if ((configUrl != null) && debug()) {
        debug("Filter " + filterConfig.getFilterName() +
                                          " using xslt " + configUrl);
      }
  
      String temp = filterConfig.getInitParameter("ignoreContentType");
  
      ignoreContentType = "true".equals(temp);
    }
docs: /* (non-Javadoc)
  @see javax.servlet.Filter#init(javax.servlet.FilterConfig)