class HtmlErrorTemplate
super Template
var status: Int
var message: nullable String
redef fun rendering do add """
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>{{{message or else status}}}</title>
</head>
<body>
<h1>{{{status}}} {{{message or else ""}}}</h1>
</body>
</html>"""
end
lib/popcorn/examples/middlewares/example_html_error_handler.nit:22,1--39,3