406
HTTP 406 Not Acceptable
4xx Client Error
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4xx Client Error
RFC 7231, Section 6.5.6
What is HTTP 406 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, based on the proactive negotiation header fields received in the request (such as Accept, Accept-Language, or Accept-Encoding).
Common Use Cases
- Requesting an unsupported content type via Accept header
- Language negotiation failure