JSFiddle - React, Tailwind, and code Playground

by Stéphane Hamel

JavaScript

// ==UserScript==
// @name       Spotify GTM inject
// @namespace  http://use.i.E.your.homepage/
// @version    0.1
// @description  Inject GTM umgLayer on Spotify
// @include     https://play.spotify.com/apps/player/*
// @copyright  2014, Stephane Hamel
// ==/UserScript==

// inspired from http://goodtagging.com/posts/test-google-tag-manager-on-any-website-using-tampermonkey/

//dataLayer = [{'gtm.whitelist': 'google'} ];
// Google Tag Manager
(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.src=
'//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','umgLayer','GTM-M95HVJ');
// End Google Tag Manager

console.info('GTM umgLayer injected');