Page visibility speed test

by Umar

HTML

<div id="test">test</div>

JavaScript

document.addEventListener("webkitvisibilitychange",  function(e) {
    console.log('timestamp: '+e.timeStamp);   
}, false);

$('#test').click(function() {
 window.open("http://www.google.com");
    console.log('leaving: ' + Date.now());
});