<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Custom Protocol Detection</title>
</head>
<body>
<h1>Click one of these labels:</h1>
<div href="blahblah:randomstuff">Non-exist protocol
</div>
<div href="mailto:johndoe@somewhere.com">Send email
</div>
<script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
<script src="protocolcheck.js"></script>
<script src="example.js"></script>
</body>
</html>