# File lib/rack/directory.rb, line 126
126:     def entity_not_found
127:       body = "Entity not found: #{@path_info}\n"
128:       size = Rack::Utils.bytesize(body)
129:       return [404, {"Content-Type" => "text/plain",
130:         "Content-Length" => size.to_s,
131:         "X-Cascade" => "pass"}, [body]]
132:     end