code: public boolean isLynx() {
  		if(!isLynxDone) {
  			String agent = req.getHeader("user-agent");
  			isLynx=agent != null && agent.toLowerCase(Locale.ROOT).contains("lynx");
  			isLynxDone=true;
  		}
  		return isLynx;
  	}
docs: Determines if the request is for a Lynx browser