GET /boop/cat HTTP/1.1
Host: cat.salad

HTTP/1.1 403 Bless your heart
Content-Type: text/html

<html>
<head><title>403 😾</title></head>
 <body>
  <h1>Now Get!</h1>
   <p>Y'ain't got no /boop/cat rights 'round here.</p>
   </body>
</html>