Script to add a "Copy Link" button for audio files/voicelines on some fandom/Wiki sites

VoiceLines to Clipboard.js

// ==UserScript==
// @name         VoiceLines to Clipboard
// @version      0.2
// @description  Add a button to copy links for voicelines to the clipboard
// @author       rjf89
// @updateURL    https://gist.githubusercontent.com/rf5860/ebd6185356900255e7f50241fff4811e/raw/e17b04152cf26ea652986051d35be264bd53d040/VoiceLines%2520to%2520Clipboard.js
// @downloadURL    https://gist.githubusercontent.com/rf5860/ebd6185356900255e7f50241fff4811e/raw/e17b04152cf26ea652986051d35be264bd53d040/VoiceLines%2520to%2520Clipboard.js
// @match        https://*.fandom.com/wiki/*/Quotes
// @match        https://*.fandom.com/wiki/*/Voice_lines
// @match        https://*.fandom.com/wiki/*_voice_lines
// @match        https://*.fandom.com/wiki/*/Responses
// @match        https://*.fandom.com/wiki/*_Announcer_pack
// @match        https://db.ascension.gg/?npc=*#sounds
// @icon         https://static.wikia.nocookie.net/overwatch_gamepedia/images/2/2a/PI_Overwatch_Logo_White.png/revision/latest/scale-to-width-down/100?cb=20160706121419
// @grant        GM_setClipboard

// ==/UserScript==

(function() {
    function setClipboard(e) {
        console.log(e.target);
        const audio = e.target.parentElement.querySelector('audio[src],source[src]')
        GM_setClipboard (audio.src.toString());
    }

    function addClipboard(a) {
        const link = a[0];
        const span = document.createElement("span");

        span.addEventListener("mouseup", setClipboard, false);
        span.style = "cursor: pointer";
        span.textContent = "📋";
        a[0].parentElement.appendChild(span);
    }
    // Create a new observer
    const observer = new MutationObserver((mutationsList, observer) => {
        // Look through all mutations that just occured
        for(let mutation of mutationsList) {
            // If the addedNodes property has one or more nodes
            if(mutation.addedNodes.length) {
                const nodes = document.querySelectorAll("div.audio-button, a.ext-audiobutton");
                nodes.forEach(node => {
                    if(!node.dataset.alreadyFound) {
                        addClipboard([node]);
                        node.dataset.alreadyFound = true;
                    }
                });
            }
        }
    });

    // Start observing the document with the configured parameters
    observer.observe(document.body, { childList: true, subtree: true });
})();