:network_authentication_requiredちなみにこれのRuby元コードはどこにあるかというとrack/rackの/lib/rack/utils.rbにあります。 HTTP_STATUS_CODES = { 100 => 'Continue', 101 => 'Switching Protocols', 102 => 'Processing', 200 => 'OK', 201 => 'Created', 202 => 'Accepted', 203 => 'Non-Authoritative Information', 204 => 'No Content', 205 => 'Reset Content', 206 => 'Partial Content', 207 => 'Multi-Status', 208 => 'Already Reported', 226
![RailsのHTTPステータスのシンボル表現まとめ](https://cdn-ak-scissors.b.st-hatena.com/image/square/32bb8bb3e568d9855a277a80b963604766cb1488/height=288;version=1;width=512/https%3A%2F%2Fblog.toshimaru.net%2Fimages%2Fposts%2Fhttpstatuscode.png)