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

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set code title references
5 501 Not Implemented
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).

Source: RFC7231 Section 6.6.2