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Redirect YT video to embedded video

Redirects any opened YT video to the YT embedded video to make the video take the whole screen.

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  1. // ==UserScript==
  2. // @name         Redirect YT video to embedded video
  3. // @namespace    YTRedir
  4. // @version      19
  5. // @description  Redirects any opened YT video to the YT embedded video to make the video take the whole screen.
  6. // @author       hacker09
  7. // @include      https://m.youtube.com/*
  8. // @include      https://www.youtube.com/*
  9. // @icon         https://www.youtube.com/s/desktop/03f86491/img/favicon.ico
  10. // @run-at       document-start
  11. // @grant        none
  12. // @noframes
  13. // ==/UserScript==
  14.  
  15. (function() {
  16.   'use strict';
  17.   const BypassTT = window.trustedTypes?.createPolicy('BypassTT', { createHTML: HTML => HTML }); //Bypass trustedTypes
  18.  
  19.   function Run() { //Creates a new function
  20.     if ((location.pathname !== '/') && (location.href.match('/watch') !== null) && (location.href.match(/&list=|&t=1s|embed/) === null)) //As long as it's not the YT index page, the URL is a video, it's not a playlist/embedded video, and doesn't have '&t=1s' in the end of the URL
  21.     { //Starts the if condition
  22.       const YTID = location.href.split(/(vi\/|v%3D|v=|\/v\/|youtu\.be\/|\/embed\/)/)[2].split(/[^0-9a-z_\-]/i)[0]; //Store the YT video ID
  23.       location = 'https://www.youtube.com/embed/' + YTID + '?autoplay=1&mute=1'; //Redirect to the embedded YT URL
  24.     } //Finishes the if condition
  25.   } //Finishes the Run function
  26.  
  27.   Run(); //Calls the Run function
  28.  
  29.   window.ontransitionrun = function() { //When the video is changed
  30.     Run(); //Calls the Run function
  31.   }; //Finishes the transition run event listener
  32.  
  33.   window.onload = function() { //When the page loads
  34.     if (location.href.match('embed') !== null) //As long as the URL is an embedded video
  35.     { //Starts the if condition
  36.       document.querySelector(".ytp-error-content-wrap-subreason > span > a, .ytp-error-content-wrap-subreason > div > a") !== null ? open(document.querySelector(".ytp-error-content-wrap-subreason > span > a, .ytp-error-content-wrap-subreason > div > a").href += '&t=1s', '_self') : ''; //If  the video can only be seen on youtube.com, redirect it
  37.       document.querySelector("a.ytp-title-link").outerHTML = (html => BypassTT?.createHTML(html) || html)(document.querySelector("a.ytp-title-link").outerHTML); //Remove the event listeners of the element
  38.       document.querySelector("a.ytp-title-link").href += '&t=1s'; //Add URL parameter to start video on the first second of the video, so that the script won't redirect the URL
  39.       document.querySelector("a.ytp-title-link").target = '_self'; //Open the video in the same tab
  40.       document.querySelector(".ytp-button.yt-uix-sessionlink").outerHTML = (html => BypassTT?.createHTML(html) || html)(document.querySelector(".ytp-button.yt-uix-sessionlink").outerHTML); //Remove the event listeners of the element
  41.       document.querySelector(".ytp-button.yt-uix-sessionlink").href += '&t=1s'; //Add URL parameter to start video on the first second of the video, so that the script won't redirect the URL
  42.       document.querySelector(".ytp-button.yt-uix-sessionlink").target = '_self'; //Open the video in the same tab
  43.       setTimeout(function() { //Starts the setimeout function
  44.         document.querySelector('#movie_player').playVideo(); //Play the video
  45.         document.querySelector(".ytp-mute-button.ytp-button").title.match('Unmute') !== null ? document.querySelector(".ytp-mute-button.ytp-button").click() : ''; //Unmute the video
  46.       }, 500); //Finishes the setimeout function
  47.     } //Finishes the if condition
  48.   }; //Finishes the onload event listener
  49. })();