docs: public void setCookies(List<HttpCookie> cookies) {
          if (cookies.isEmpty()) {
              setHeader(HttpHeader.COOKIE, null);
          }
  
          StringBuilder sbData = new StringBuilder();
  
          for (HttpCookie c : cookies) {
              sbData.append(c.getName());
              sbData.append('=');
              sbData.append(c.getValue());
              sbData.append("; ");
          }
  
          if (sbData.length() <= 3) {
              setHeader(HttpHeader.COOKIE, null);
              return;
          }
  
          final String data = sbData.substring(0, sbData.length() - 2);
          setHeader(HttpHeader.COOKIE, data);
      }