JSFiddle - React, Tailwind, and code Playground

HTML

<body>
    <!-- This works -->
    <!-- <script type="text/javascript" src="http://www.zoom.it/aaa.js"/> -->
    
    <h1>This gets removed</h1>
</body>

JavaScript

$(function() {
    
    function getScript(src) {
        document.write('<' + 'script src="' + src + '"' +
                   ' type="text/javascript"><' + '/script>');
    }
    // Doesn't seem to work - get "Cannot set property 'innerHTML' of null"
    getScript("http://www.zoom.it/aaa.js");
    
});