JSFiddle - React, Tailwind, and code Playground
by mqchen
HTML
<iframe id="frame" src="http://google.com"></iframe>
JavaScript
var lastSrc = '';
(function() {
var curSrc = $('frame').get('src');
if(curSrc != lastSrc) {
console.debug("contents changed");
lastSrc = curSrc;
}
}).periodical(100);
(function() {
$('frame').set('src', 'http://example.com');
}).delay(5000);