JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://getfirebug.com/firebug-lite-debug.js"></script>
<script src="http://code.jquery.com/jquery-1.4.3.js"></script>

JavaScript

$(function() {
    $.ajaxSetup({
        contentType: "my/json"
    });

    $.post("/echo/json/", function (returndata) {
        
    });
    
});