JSFiddle - React, Tailwind, and code Playground

JavaScript

XMLHttpRequest.prototype.oldSend = XMLHttpRequest.prototype.send
XMLHttpRequest.prototype.send = function (data) {
    console.log("AJAX request was sent.");
    this.oldSend.call(this, data);
}

// see console
var test = new XMLHttpRequest();
test.open("GET", "http://time.jsontest.com");
test.onreadystatechange = function () {
    if (test.status == 200 && test.readyState == 4) {
        console.log(test.responseText);
    }
}
test.send(null);