メロブでスクショできるやつ

antiprotector.js

// ==UserScript==
// @name         Anti protector
// @namespace    https://twitter.com/og24715
// @version      0.1
// @description  try to take over the world!
// @author       og24715
// @match        https://www.melonbooks.co.jp/viewer/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=melonbooks.co.jp
// @grant        none
// ==/UserScript==

(function() {
    window.requirejs._defined['views/protection_view'].prototype.showNeedsReloadMessage = () => { throw new Error() }
})();