Disable new GitLab issue drawer link hijacking

gitlab_disable_issue_drawer_link_hijacking.js

// ==UserScript==
// @name         Disable GitLab issues drawer
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Disable GitLab issues drawer
// @author       Gabriel Ferreira
// @match        https://gitlab.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=gitlab.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    // Nuke every event listener that hijacks links in the new issues board...
    const observer = new MutationObserver((mutations, obs) => {
        const links = document.getElementsByClassName('gl-link');
        if (links.length > 0) {
            obs.disconnect();

            document.body.addEventListener('click', (e) => {
                const classes = [...e.srcElement.classList, ...e.srcElement.parentElement.classList, ...e.srcElement.parentElement.parentElement.classList, ...e.srcElement.parentElement.parentElement.parentElement.classList];
                if(classes.some(test_class => test_class.includes("issue-clickable")))
                {
                    e.stopPropagation(); // prevents bubbling up
                    e.stopImmediatePropagation(); // blocks other handlers on same element
                }
            }, true);

            obs.observe(document.body, {
                childList: true,
                subtree: true,
            });
        }
    });

    const url = window.location.pathname;
    if (/\/issues(?:\/|-\/|\/?$)(?!\d)/.test(url)) {
      observer.observe(document.body, {
        childList: true,
        subtree: true,
      });
    }
})();