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This script optimizes YouTube's performance by modified configs, anti-shorts and much more!
// ==UserScript==
// @name YouTube Web Tweaks
// @version 3.0.0
// @description This script optimizes YouTube's performance by modified configs, anti-shorts and much more!
// @author Magma_Craft
// @license MIT
// @match *://www.youtube.com/*
// @namespace https://greasyfork.org/en/users/933798
// @icon https://www.youtube.com/favicon.ico
// @unwrap
// @run-at document-start
// @grant none
// @require https://cdnjs.cloudflare.com/ajax/libs/arrive/2.4.1/arrive.min.js
// ==/UserScript==
// Modifiying yt.config flags to optimize loading times and disables animations
(function() {
window['yt'] = window['yt'] || {};
yt['config_'] = yt.config_ || {};
yt.config_['EXPERIMENT_FLAGS'] = yt.config_.EXPERIMENT_FLAGS || {};
var iv = setInterval(function() {
yt.config_.IS_TABLET = true;
yt.config_.DISABLE_YT_IMG_DELAY_LOADING = true;
yt.config_.EXPERIMENT_FLAGS.polymer_verifiy_app_state = false;
yt.config_.EXPERIMENT_FLAGS.warm_load_nav_start_web = false;
yt.config_.EXPERIMENT_FLAGS.kevlar_player_response_swf_config_wrapper_killswitch = false;
yt.config_.EXPERIMENT_FLAGS.desktop_delay_player_resizing = false;
yt.config_.EXPERIMENT_FLAGS.desktop_player_touch_gestures = false;
yt.config_.EXPERIMENT_FLAGS.web_animated_like = false;
yt.config_.EXPERIMENT_FLAGS.web_animated_like_lazy_load = false;
yt.config_.EXPERIMENT_FLAGS.render_unicode_emojis_as_small_images = true;
yt.config_.EXPERIMENT_FLAGS.kevlar_refresh_on_theme_change = false; //disable reload when changing theme
yt.config_.EXPERIMENT_FLAGS.kevlar_watch_cinematics = false;
yt.config_.EXPERIMENT_FLAGS.kevlar_watch_comments_panel_button = true; //useful if you want read comment while watching the video
yt.config_.EXPERIMENT_FLAGS.kevlar_watch_hide_comments_while_panel_open = true; //hide comments section when comment panel is open
yt.config_.EXPERIMENT_FLAGS.kevlar_watch_comments_ep_disable_theater = false; //no hide comment panel when using theater mode
}, 1);
var to = setTimeout(function() {
clearInterval(iv);
}, 1000)
})();
// Auto redirect shorts to watch page (credit goes to YukisCoffee and Fuim)
var oldHref = document.location.href;
if (window.location.href.indexOf('youtube.com/shorts') > -1) {
window.location.replace(window.location.toString().replace('/shorts/', '/watch?v='));
}
window.onload = function() {
var bodyList = document.querySelector("body")
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
if (oldHref != document.location.href) {
oldHref = document.location.href;
console.log('location changed!');
if (window.location.href.indexOf('youtube.com/shorts') > -1) {
window.location.replace(window.location.toString().replace('/shorts/', '/watch?v='));
}
}
});
});
var config = {
childList: true,
subtree: true
};
observer.observe(bodyList, config);
};
/**
* Shorts URL redirect.
*
* This is called on initial visit only. Successive navigations
* are managed by modifying the YouTube Desktop application.
*/
(function(){
/** @type {string} */
var path = window.location.pathname;
if (0 == path.search("/shorts"))
{
// Extract the video ID from the shorts link and redirect.
/** @type {string} */
var id = path.replace(/\/|shorts|\?.*/g, "");
window.location.replace("https://www.youtube.com/watch?v=" + id);
}
})();
/**
* YouTube Desktop Shorts remover.
*
* If the initial URL was not a shorts link, traditional redirection
* will not work. This instead modifies video elements to replace them with
* regular links.
*/
(function(){
/**
* @param {string} selector (CSS-style) of the element
* @return {Promise<Element>}
*/
async function querySelectorAsync(selector)
{
while (null == document.querySelector(selector))
{
// Pause for a frame and let other code go on.
await new Promise(r => requestAnimationFrame(r));
}
return document.querySelector(selector);
}
/**
* Small toolset for interacting with the Polymer
* YouTube Desktop application.
*
* @author Taniko Yamamoto <kirasicecreamm@gmail.com>
* @version 1.0
*/
class YtdTools
{
/** @type {string} Page data updated event */
static EVT_DATA_UPDATE = "yt-page-data-updated";
/** @type {Element} Main YT Polymer manager */
static YtdApp;
/** @type {bool} */
static hasInitialLoaded = false;
/** @return {Promise<bool>} */
static async isPolymer()
{
/** @return {Promise<void>} */
function waitForBody() // nice hack lazy ass
{
return new Promise(r => {
document.addEventListener("DOMContentLoaded", function a(){
document.removeEventListener("DOMContentLoaded", a);
r();
});
});
}
await waitForBody();
if ("undefined" != typeof document.querySelector("ytd-app"))
{
this.YtdApp = document.querySelector("ytd-app");
return true;
}
return false;
}
/** @async @return {Promise<void|string>} */
static waitForInitialLoad()
{
var updateEvent = this.EVT_DATA_UPDATE;
return new Promise((resolve, reject) => {
if (!this.isPolymer())
{
reject("Not Polymer :(");
}
function _listenerCb()
{
document.removeEventListener(updateEvent, _listenerCb);
resolve();
}
document.addEventListener(updateEvent, _listenerCb);
});
}
/** @return {string} */
static getPageType()
{
return this.YtdApp.data.page;
}
}
class ShortsTools
{
/** @type {MutationObserver} */
static mo = new MutationObserver(muts => {
muts.forEach(mut => {
Array.from(mut.addedNodes).forEach(node => {
if (node instanceof HTMLElement) {
this.onMutation(node);
}
});
});
});
/** @return {void} */
static watchForShorts()
{
/*
this.mo.observe(YtdTools.YtdApp, {
childList: true,
subtree: true
});
*/
var me = this;
YtdTools.YtdApp.arrive("ytd-video-renderer, ytd-grid-video-renderer", function() {
me.onMutation(this);
// This is literally the worst hack I ever wrote, but it works ig...
(new MutationObserver(function(){
if (me.isShortsRenderer(this))
{
me.onMutation(this);
}
}.bind(this))).observe(this, {"subtree": true, "childList": true, "characterData": "true"});
});
}
/** @return {void} */
static stopWatchingForShorts()
{
this.mo.disconnect();
}
/**
* @param {HTMLElement} node
* @return {void}
*/
static onMutation(node)
{
if (node.tagName.search("VIDEO-RENDERER") > -1 && this.isShortsRenderer(node))
{
this.transformShortsRenderer(node);
}
}
/** @return {bool} */
static isShortsRenderer(videoRenderer)
{
return "WEB_PAGE_TYPE_SHORTS" == videoRenderer?.data?.navigationEndpoint?.commandMetadata?.webCommandMetadata?.webPageType;
}
/** @return {string} */
static extractLengthFromA11y(videoData)
{
// A11y = {title} by {creator} {date} {*length*} {viewCount} - play Short
// tho hopefully this works in more than just English
var a11yTitle = videoData.title.accessibility.accessibilityData.label;
var publishedTimeText = videoData.publishedTimeText.simpleText;
var viewCountText = videoData.viewCountText.simpleText;
var isolatedLengthStr = a11yTitle.split(publishedTimeText)[1].split(viewCountText)[0]
.replace(/\s/g, "");
var numbers = isolatedLengthStr.split(/\D/g);
var string = "";
// Remove all empties before iterating it
for (var i = 0; i < numbers.length; i++)
{
if ("" === numbers[i])
{
numbers.splice(i, 1);
i--;
}
}
for (var i = 0; i < numbers.length; i++)
{
// Lazy 0 handling idc im tired
if (1 == numbers.length)
{
string += "0:";
if (1 == numbers[i].length)
{
string += "0" + numbers[i];
}
else
{
string += numbers[i];
}
break;
}
if (0 != i) string += ":";
if (0 != i && 1 == numbers[i].length) string += "0";
string += numbers[i];
}
return string;
}
/**
* @param {HTMLElement} videoRenderer
* @return {void}
*/
static transformShortsRenderer(videoRenderer)
{
/** @type {string} */
var originalOuterHTML = videoRenderer.outerHTML;
/** @type {string} */
var lengthText = videoRenderer.data?.lengthText?.simpleText ?? this.extractLengthFromA11y(videoRenderer.data);
/** @type {string} */
var lengthA11y = videoRenderer.data?.lengthText?.accessibility?.accessibilityData?.label ?? "";
/** @type {string} */
var originalHref = videoRenderer.data.navigationEndpoint.commandMetadata.webCommandMetadata.url;
var href = "/watch?v=" + originalHref.replace(/\/|shorts|\?.*/g, "");
var reelWatchEndpoint = videoRenderer.data.navigationEndpoint.reelWatchEndpoint;
var i;
videoRenderer.data.thumbnailOverlays.forEach((a, index) =>{
if ("thumbnailOverlayTimeStatusRenderer" in a)
{
i = index;
}
});
// Set the thumbnail overlay style
videoRenderer.data.thumbnailOverlays[i].thumbnailOverlayTimeStatusRenderer.style = "DEFAULT";
delete videoRenderer.data.thumbnailOverlays[i].thumbnailOverlayTimeStatusRenderer.icon;
// Set the thumbnail overlay text
videoRenderer.data.thumbnailOverlays[i].thumbnailOverlayTimeStatusRenderer.text.simpleText = lengthText;
// Set the thumbnail overlay accessibility label
videoRenderer.data.thumbnailOverlays[i].thumbnailOverlayTimeStatusRenderer.text.accessibility.accessibilityData.label = lengthA11y;
// Set the navigation endpoint metadata (used for middle click)
videoRenderer.data.navigationEndpoint.commandMetadata.webCommandMetadata.webPageType = "WEB_PAGE_TYPE_WATCH";
videoRenderer.data.navigationEndpoint.commandMetadata.webCommandMetadata.url = href;
videoRenderer.data.navigationEndpoint.watchEndpoint = {
"videoId": reelWatchEndpoint.videoId,
"playerParams": reelWatchEndpoint.playerParams,
"params": reelWatchEndpoint.params
};
delete videoRenderer.data.navigationEndpoint.reelWatchEndpoint;
//var _ = videoRenderer.data; videoRenderer.data = {}; videoRenderer.data = _;
// Sometimes the old school data cycle trick fails,
// however this always works.
var _ = videoRenderer.cloneNode();
_.data = videoRenderer.data;
for (var i in videoRenderer.properties)
{
_[i] = videoRenderer[i];
}
videoRenderer.insertAdjacentElement("afterend", _);
videoRenderer.remove();
}
}
/**
* Sometimes elements are reused on page updates, so fix that
*
* @return {void}
*/
function onDataUpdate()
{
var videos = document.querySelectorAll("ytd-video-renderer, ytd-grid-video-renderer");
for (var i = 0, l = videos.length; i < l; i++) if (ShortsTools.isShortsRenderer(videos[i]))
{
ShortsTools.transformShortsRenderer(videos[i]);
}
}
/**
* I hope she makes lotsa spaghetti :D
* @async @return {Promise<void>}
*/
async function main()
{
// If not Polymer, nothing happens
if (await YtdTools.isPolymer())
{
ShortsTools.watchForShorts();
document.addEventListener("yt-page-data-updated", onDataUpdate);
}
}
main();
})();
// CSS adjustments and other tweaks to apply (including removal of ads and "Video paused. Continue watching?" popup)
(function() {
ApplyCSS();
function ApplyCSS() {
var styles = document.createElement("style");
styles.innerHTML=`
/* Remove ambient light on watch page */
cinematics.ytd-watch-flexy {
display: none !important;
}`
document.head.appendChild(styles);
}
})();
Object.defineProperties(document, { 'hidden': {value: false}, 'webkitHidden': {value: false}, 'visibilityState': {value: 'visible'}, 'webkitVisibilityState': {value: 'visible'} });
setInterval(function(){
document.dispatchEvent( new KeyboardEvent( 'keyup', { bubbles: true, cancelable: true, keyCode: 143, which: 143 } ) );
}, 60000);