Reqwest timeout bug

gistfile1.js

function bug() {
    window.reqwest({
        'url': 'http://thisdoesntexisthahahaha.com',
        'timeout': 1000 * 5,
        'type': 'html',
        'success': function () {
            alert('http://thisdoesntexisthahahaha.com exists??');
        },
        'error': function () {
            console.error('Error, trying again');
            setTimeout(bug, 1000 * 5);
        }
    });
}

var head= document.getElementsByTagName('head')[0];
var script= document.createElement('script');
script.type= 'text/javascript';
script.src= 'https://raw.github.com/ded/reqwest/master/reqwest.js';
head.appendChild(script);

// no IE support, hahahaha
script.onload = bug;