Untitled

// ==UserScript==
// @name         NEW POLYMER DISABLE
// @namespace    local
// @version      0.1
// @match        http*://*.youtube.com/*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function() {
    'use strict';
    var href = document.location.href;

    if (href.indexOf("/embed/") == -1 && href.indexOf("studio." == -1)) {
        if (href.indexOf("disable_polymer") == -1) {
            document.location += (href.indexOf("?") == -1 ? "?":"&") + "app=desktop&disable_polymer=1";
        }
    }
    var locationhref = location.href;
    Refresh();
    function Refresh(){
        if((locationhref != location.href && location.href.indexOf("app") == -1) || document.documentElement.innerHTML.indexOf("<!doctype html>") != -1){
            location = location;
        }
        else{
            setTimeout(function(){ Refresh() }, 1);
        }
    }
})();