ExtJS: target=_blank for all links

HTML

<link rel="stylesheet" href="http://cdn.sencha.com/ext/gpl/4.2.0/resources/css/ext-all.css">

JavaScript

Ext.onReady(function () {
    Ext.select('body').on('click', function (e, el) {
        el.target = '_blank';
    }, null, {delegate: 'a'});
    var window = Ext.create('Ext.window.Window', {
        items: [{
            xtype: 'component',
            autoEl: {
                tag: 'iframe',
                href: 'https://www.google.com/',
                html: 'Example.com'
            }
        }]
    }).show();
});