fix-spotify-urls.user.js

// ==UserScript==
// @name         dont open spotify-links in new tab
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  fix the spotify integration in rateyourmusic by removing the target=_blank attrs from the spotify links.
// @author       abeforgit
// @match        https://*.rateyourmusic.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=rateyourmusic.com
// @run-at       document-end
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    const config = {childList: true, subtree: true};
    const cb = (mutationList) => {
        if(mutationList.some(mutation => mutation.type === 'childList')) {
            const links = document.querySelectorAll('a[title=Spotify][target=_blank]');
                links.forEach(node => node.removeAttribute("target"));
           }

    };
    const obs = new MutationObserver(cb);
    obs.observe(document.body, config);
})();