app/templates/404.dust
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Maestro Server - Cloud Inventory</title>
<meta name="Description" content="Graph viewer - Maestro Server">
<link rel="icon" type="image/png" sizes="16x16" href="/static/imgs/favicon.ico">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<div id="viwer">
404
</div>
</body>
</html>