HTTP Status Code: 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, according to the proactive negotiation header fields received in the request, and the server is unwilling to supply a default representation. (RFC 7231: Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content)
Return to list of all ( HTTP Status Codes | Web Concepts )