Service specific error code

A human-readable explanation specific to this occurrence of the problem.

A URI reference that identifies the specific occurrence of the problem. It may or may not yield further information if dereferenced.

The HTTP status code ([RFC7231], Section 6) generated by the origin server for this occurrence of the problem.

A short, human-readable summary of the problem type. It SHOULD NOT change from occurrence to occurrence of the problem, except for purposes of localization (e.g., using proactive content negotiation; see [RFC7231], Section 3.4).

A URI reference [RFC3986] that identifies the problem type. This specification encourages that, when dereferenced, it provide human-readable documentation for the problem type (e.g., using HTML [W3C.REC-html5-20141028]). When this member is not present, its value is assumed to be "about:blank".