HEAD /bp.x.y HTTP/1.1
Host: foo.example.com

HEAD /bp.x%2E%79 HTTP/1.1
Host: foo.example.com

HEAD /bp%2ex.y HTTP/1.1
Host: foo.example.com

HEAD /bp.x.%79 HTTP/1.1
Host: foo.example.com

GET /%62%70%2e%78%2E%79?foo=bar HTTP/1.1
Connection: close
Host: foo.example.com

