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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<!-- random words that should not end up on disk -->
<title>Counter</title>
</head>
<body>
<h2 id="header">Counter should increase when reloading</h2>
<div id="counter"></div>
<script>
var n = localStorage.getItem('on_load_counter');
if (n === null) {
n = 0;
}
n++;
localStorage.setItem("on_load_counter", n);
document.getElementById('counter').innerHTML = n;
</script>
</body>
</html>