JSFiddle - React, Tailwind, and code Playground

JavaScript

var xhr = new XMLHttpRequest();
xhr.open('GET', 'http://iichan.hk/b', true);
xhr.onreadystatechange = function() {
  if (xhr.readyState == XMLHttpRequest.DONE) {
    alert("["+xhr.responseText.length+"]");
  }
}
xhr.send(null);