JSFiddle - React, Tailwind, and code Playground

JavaScript

$.ajaxSetup({
    type: "POST",
    contentType: "application/json; charset=utf-8",
    dataType: "json"
});

$(function () {
    
    //Content type will be included under jQuery 1.4, but
    //not under 1.5
    $.ajax({
        url: "/echo/json/",
        type: "POST",
        data: undefined,
        success: function() {
            
        }
    });
    
    
});