Disables the automatic downscaling of Twitch streams while tabbed away
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// ==UserScript==
// @name Twitch - Disable automatic video downscale
// @namespace CommanderRoot
// @copyright CommanderRoot
// @version 1.0.2
// @description Disables the automatic downscaling of Twitch streams while tabbed away
// @author https://twitter.com/CommanderRoot
// @match https://www.twitch.tv/*
// @match https://player.twitch.tv/*
// @grant none
// @run-at document-start
// ==/UserScript==
"use strict";
// Try to trick the site into thinking it's never hidden
Object.defineProperty(document, 'hidden', {value: false, writable: false});
Object.defineProperty(document, 'visibilityState', {value: 'visible', writable: false});
Object.defineProperty(document, 'webkitVisibilityState', {value: 'visible', writable: false});
document.dispatchEvent(new Event('visibilitychange'));
document.hasFocus = function () { return true; };
// visibilitychange events are captured and stopped
document.addEventListener('visibilitychange', function(e) {
e.stopImmediatePropagation();
}, true, true);
// Set the player quality to "Source"
window.localStorage.setItem('video-quality', '{"default":"chunked"}');