JSFiddle - React, Tailwind, and code Playground

HTML

<body>
    <!-- This works -->
    <!-- <script type="text/javascript" src="http://www.zoom.it/aaa.js"/> -->
</body>

JavaScript

$(function() {
    // Doesn't seem to work - get "Cannot set property 'innerHTML' of null"
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.zoom.it/aaa.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
});