// ==UserScript==
// @name         Joy: correcting nofollow domain
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  correcting nofollow domain
// @author       You
// @match        http://joy.reactor.cc/*
// @grant        none
// @run-at       document-end
// ==/UserScript==

(function() {
    'use strict';

    document.querySelectorAll('a[rel="nofollow"][href^="//reactor.cc"]').forEach((elm) => {
        elm.href = elm.href.replace('//reactor.cc', '//joy.reactor.cc');
    });
})();