JSFiddle - React, Tailwind, and code Playground

JavaScript

$.support.cors = true;
try {
$.ajax({
  url: 'http://code.jquery.com/jquery-2.1.1.js',
  type: 'GET',
  async: false
});
} catch(ex) {
    alert('error 1!')
}
try {
$.ajax({
  url: 'http://code.jquery.com/jquery-2.1.1.js',
  type: 'GET',
  async: true
});
} catch(ex) {
    alert('error 2!')
}