# File lib/rack/directory.rb, line 70
70:     def check_forbidden
71:       return unless @path_info.include? ".."
72: 
73:       body = "Forbidden\n"
74:       size = Rack::Utils.bytesize(body)
75:       return [403, {"Content-Type" => "text/plain",
76:         "Content-Length" => size.to_s,
77:         "X-Cascade" => "pass"}, [body]]
78:     end