Automatically pause Twitch VODs when window not visible

twitch_vod_autopause.user.js

// ==UserScript==
// @name         Twitch VOD Autopause
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Automatically pause Twitch VODs when window not visible
// @author       bhughes339
// @match        https://*.twitch.tv/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=twitch.tv
// ==/UserScript==

var intervalMs = 100;

(function() {
    'use strict';

    setInterval(function() {
        var vid = document.getElementsByTagName("video")[0];

        // Pause videos when not in focus
        if (document.hidden && document.URL.includes("/videos/")) {
            vid.pause();
        };

        // Pause autoplay bullshit
        if (document.URL.match(/videos($|\?)/) || !document.URL.includes("/videos")) {
            vid.pause();
            vid.muted = false;
        };
    }, intervalMs);
})();