Youtube - Restore Classic

If youtube is in the new 2017 YouTube Material Redesign, automatically restore classic view

Fra og med 12.11.2017. Se den nyeste version.

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 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         Youtube - Restore Classic
// @version      1.0.2
// @description  If youtube is in the new 2017 YouTube Material Redesign, automatically restore classic view
// @author       Cpt_mathix
// @match        https://www.youtube.com
// @include      https://www.youtube.com/*
// @license      GPL version 2 or any later version; http://www.gnu.org/licenses/gpl-2.0.txt
// @namespace    https://greasyfork.org/users/16080
// @run-at       document-start
// @grant        none
// @noframes
// ==/UserScript==

(function() {
    replaceCookie("PREF");

    function replaceCookie(name) {
        if (document.cookie) {
            var match = document.cookie.match(RegExp('(?:^|;\\s*)' + name + '=([^;]*)'));
            if (match && match[1]) {
                match = match[1];
                console.log("current PREF cookie: " + match);
                if (match.search(/f6=(8|9)(&|;)/) === -1) {
                    if (match.search(/f6=.+(&|;)/) === -1) {
                        document.cookie = "PREF=" + match + "&f6=8" + ";path=/;domain=.youtube.com";
                    } else if (match.search(/f6=.+(&|;)/) !== -1) {
                        document.cookie = "PREF=" + match.replace(/f6=.+(&|;)/, 'f6=8&') + ";path=/;domain=.youtube.com";
                    }
                    location.reload();
                }
            } else {
                console.log("PREF cookie not found");
            }
        } else {
            console.log("document.cookie not supported for your browser or you do not allow cookies at all");
        }
    }
})();