Disable popup on moongourd.com

disable_moongourd_alert.user.js

// ==UserScript==
// @name        Disable Moongourd alert
// @namespace   intermission
// @match       *://moongourd.com/*
// @match       *://*.moongourd.com/*
// @version     1
// @grant       none
// @run-at      document-start
// ==/UserScript==

"use strict";

const orig = window.alert.bind(window);

Object.defineProperty(window, "alert", {
  value: function alert(msg) {
    if (~msg.indexOf("cancerous pop-ups")) return;
    orig(msg);
  },
  enumerable: true,
  configurable: true,
  writable: true
});