<!DOCTYPE html>
<html>
<head>
<style>
.col {
float:left;
width:50%;
left:50%;
}
</style>
</head>
<body>
<div class=col>
<h2>EventSource</h2>
<ul id=es-messages>
</ul>
</div>
<div class=col>
<h2>EventSourcePolyfill</h2>
<ul id=es-polyfill-messages>
</ul>
</div>
<script src=/eventsource-polyfill.js></script>
<script>
function subscribe(es, ul) {
es.addEventListener('server-time', function (e) {
var li = document.createElement("LI");
li.appendChild(document.createTextNode(e.data));
ul.appendChild(li);
});
}
subscribe(new EventSource('/sse'), document.getElementById('es-messages'));
subscribe(new EventSourcePolyfill('/sse'), document.getElementById('es-polyfill-messages'));
</script>
</body>