Bypass YouTube age verification

Bypass YouTube age verification without logging in.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name           Bypass YouTube age verification
// @name:de        Youtube-Altersverifikation umgehen
// @namespace      tfr
// @description    Bypass YouTube age verification without logging in.
// @description:de Umgehe die Altersverifikation ohne Einloggen.
// @author         tfr (https://github.com/t-fr/)
// @license        CC0; https://creativecommons.org/publicdomain/zero/1.0/
// @license        MIT license; https://pastebin.com/raw.php?i=4TMeeUXC
// @compatible     firefox Works with Firefox and Greasemonkey
// @compatible     chrome Works with Chrome and Tampermonkey
// @compatible     opera Works with Opera and Tampermonkey Beta or Violent monkey
// @compatible     tfrbmlconv-1 Works with / Funktioniert mit: Firefox 40, Chrome 44, Opera 31; Does not work with / Funktioniert nicht mit: IE 8, IE 11, Opera 12
// @oujs:author    tfr
// @include        http://www.youtube.com/watch*
// @include        https://www.youtube.com/watch*
// @version        6
// @grant          none
// ==/UserScript==

/* This script is dual-licensed under CC0 and the MIT license.
 * You can choose which one you want to use.
 * CC0 license: http://creativecommons.org/publicdomain/zero/1.0/deed.en
 * MIT license: https://pastebin.com/raw.php?i=4TMeeUXC
 *
 * Dieses Skript steht sowohl unter CC0 als auch unter der MIT-Lizenz.
 * Sie können sich aussuchen, welche Lizenz Sie nutzen.
 * CC0-Lizenz: http://creativecommons.org/publicdomain/zero/1.0/deed.de
 * MIT-Lizenz: https://pastebin.com/raw.php?i=4TMeeUXC
 */

/* Version 6: Update license information
 * Version 5: Update metadata block
 * Version 4: Correct string search index from 1 to -1
 * Version 3: https://greasyfork.org/forum/discussion/4509
 * Version 2: Error in code, bypass in playlists was not working
 */

if(window.document.getElementById("watch7-player-age-gate-content"))
  {
    var videoid = window.location.search.substr(window.location.search.indexOf("v=") + 2);
    if(videoid.indexOf("&") > -1)
      {
        videoid = videoid.substr(0, videoid.indexOf("&"));
      }
    videoid = decodeURIComponent(videoid);
    window.document.getElementById("player-api").remove();
    var playerparent = window.document.getElementById("player-unavailable");
    var playerframe = window.document.createElement("iframe");
    playerframe.setAttribute("src", "//www.youtube.com/embed/" + videoid + "?autoplay=1&showinfo=0");
    playerframe.setAttribute("id", "player-frame");
    playerframe.setAttribute("style", "position:absolute; z-index:99999; width:100%; height:100%;");
    playerparent.appendChild(playerframe);
  }