JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">
<div class="item"></div>

JavaScript

var item = $('.item');

function testImage(url) {
    $("<img />", { 
      error: function() { item.html('false'); }, 
      load: function() { item.html('true'); }
    }).attr('src', url);
}
testImage('http://www.google.com/logos/dragonboat2010-hp.jpg');
setTimeout(function() {
    testImage('http://www.google.com/logos/dragonboat2010-hp.jpg12312313');
}, 2000);