UNIT3D fix spoilers

fixSpoiler.user.js

// ==UserScript==
// @name         UNIT3D Fix Spoiler
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function toggleSpoiler(element) {
        if (element.style.display === '') {
            element.style.display = 'none';
        } else {
            element.style.display = '';
        }
    }

    var spoilerButtons = document.querySelectorAll(".decoda-spoiler-button");
    spoilerButtons.forEach(function(element) {
        element.onclick = function() {
            toggleSpoiler(this.nextElementSibling);
        };
    });
})();