docs: protected boolean trigger(ServletRequest pRequest) {
          boolean trigger = false;
  
          if (pRequest instanceof HttpServletRequest) {
              HttpServletRequest request = (HttpServletRequest) pRequest;
              String accept = getAcceptedFormats(request);
              String originalFormat = getServletContext().getMimeType(request.getRequestURI());
  
              //System.out.println("Accept: " + accept);
              //System.out.println("Original format: " + originalFormat);
  
              // Only override original format if it is not accpeted by the client
              // Note: Only explicit matches are okay, */* or image/* is not.
              if (!StringUtil.contains(accept, originalFormat)) {
                  trigger = true;
              }
          }
  
          // Call super, to allow content negotiation even though format is supported
          return trigger || super.trigger(pRequest);
      }