httpstatuses/contents/codes/501.md
2015-11-07 05:48:31 +00:00

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Markdown

---
set: 5
code: 501
title: Not Implemented
references:
"Rails HTTP Status Symbol": ":not_implemented"
---
The 501 Not Implemented status code indicates that the server does not support
the functionality required to fulfill the request.
This is the appropriate response when the server does not recognize the request
method and is not capable of supporting it for any resource.
A 501 response is cacheable by default; i.e., unless otherwise indicated by the
method definition or explicit cache controls
(see [Section 4.2.2 of RFC7234][1]).
Source: [RFC7231 Section 6.6.2][1]
[1]: <http://tools.ietf.org/html/rfc7231#section-6.6.2>
[2]: <http://tools.ietf.org/html/rfc7234#section-4.2.2>