httpstatuses/contents/codes/406.md
2015-11-07 05:45:46 +00:00

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---
set: 4
code: 406
title: Not Acceptable
references:
"Rails HTTP Status Symbol": ":not_acceptable"
---
The 406 Not Acceptable status code indicates that the target resource does not
have a current representation that would be acceptable to the user agent,
according to the proactive negotiation header fields received in the request
([RFC7231 Section 5.3][2]), and the server is unwilling to supply a default
representation.
The server SHOULD generate a payload containing a list of available
representation characteristics and corresponding resource identifiers from which
the user or user agent can choose the one most appropriate. A user agent MAY
automatically select the most appropriate choice from that list. However, this
specification does not define any standard for such automatic selection, as
described in [RFC7231 Section 6.4.1][3].
Source: [RFC7231 Section 6.5.6][1]
[1]: <http://tools.ietf.org/html/rfc7231#section-6.5.6>
[2]: <http://tools.ietf.org/html/rfc7231#section-5.3>
[3]: <http://tools.ietf.org/html/rfc7231#section-6.4.1>