Tampermonkey script for pausing autoplaying videos on pinterest only

pinterest-autoplay-fix.tampermonkey.js

// ==UserScript==
// @name         Pinterest Autoplay Remover
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  pauses autoplaying / looping videos
// @author       @noopkat
// @match        https://www.pinterest.com
// @grant        none
// ==/UserScript==

// beware: this is quick and dirty because it gets the job done and that's all I care about.

(function() {
    'use strict';

    const observer = new MutationObserver((mutations) => document.querySelectorAll('video').forEach(video => video.pause()));

    const observerConfig = {
        childList: true,
        subtree: true
    };

    const targetNode = document.body;
    observer.observe(targetNode, observerConfig);

})();