web-cheat/protocol-relative-url.html
<!doctype html>
<html lang=en>
<head>
<meta charset=utf-8>
<title>Protocol relative URL</title>
</head>
<body>
<p><a href="/example.com">/example.com</p>
<p><a href="//example.com">//example.com</p>
</body>
</html>