I use this bit of code:
<!DOCTYPE html>
<html>
<head>
<title>Example</title>
</head>
<body>
<script>
window.setInterval("reloadIFrame();", 3000);
function reloadIFrame() {
document.getElementsByName("testFrame")[0].contentWindow.location.reload();
}
</script>
<iframe name="testFrame" src="https://docs.google.com/presentation/d/1jkNVBxAX57PjfxTNTkgO8zNnMFYoKUqUKQ4aJk8pCIs/embed?start=true&loop=true&delayms=5000" width="760px" height="920px"></iframe>
</body>
</html>
And it works well for some websites, but not for this google presntation.. What should I change to make it works?