4×× Client Error

406 Not Acceptable

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 request1, 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.

406 Code References

.NET HTTP Status Enum HttpStatusCode.NotAcceptable

Rust HTTP Status Constant http::StatusCode::NOT_ACCEPTABLE

Rails HTTP Status Symbol :not_acceptable

Go HTTP Status Constant http.StatusNotAcceptable

Symfony HTTP Status Constant Response::HTTP_NOT_ACCEPTABLE

Python2 HTTP Status Constant httplib.NOT_ACCEPTABLE

Python3+ HTTP Status Constant http.client.NOT_ACCEPTABLE

Python3.5+ HTTP Status Constant http.HTTPStatus.NOT_ACCEPTABLE

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