JSFiddle - React, Tailwind, and code Playground

by Christian Wygoda

HTML

<body>
    <iframe class="mapframe" src="http://fiddle.jshell.net/arsgeografica/qhU95/show/"></iframe>
</body>

JavaScript

var iframe = $('.mapframe')[0];
var iwindow = iframe.contentWindow || iframe;
var value = iwindow.FooBar;

alert("And the value of the iframe's FooBar is... " + value);