Accept-Patch header

The HTTP Accept-Patch response header advertises which media types the server is able to understand in a PATCH request. For example, a server receiving a PATCH request with an unsupported media type could reply with 415 Unsupported Media Type and an Accept-Patch header referencing one or more supported media types.

The header should appear in OPTIONS requests to a resource that supports the PATCH method. An Accept-Patch header in a response to any request method implicitly means that a PATCH is allowed on the target resource in the request.

[!NOTE] IANA maintains a list of official content encodings. The bzip and bzip2 encodings are non-standard but may be used in some cases, particularly for legacy support.

Header type	[Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response%20header)

Syntax

Accept-Patch: <media-type>/<subtype>
Accept-Patch: <media-type>/*
Accept-Patch: */*

// Comma-separated list of media types
Accept-Patch: <media-type>/<subtype>, <media-type>/<subtype>

Directives

• <media-type>/<subtype>
  • : A single, precise media type, like text/html.
• <media-type>/*
  • : A media type without a subtype. For example, image/* corresponds to image/png, image/svg, image/gif, and other image types.
• */*
  • : Any media type.

Examples

Accept-Patch: application/json
Accept-Patch: application/json, text/plain
Accept-Patch: text/plain;charset=utf-8

Specifications

Browser compatibility

Browser compatibility is not relevant for this header. The server sends the header, and the specification doesn’t define client behavior.

See also

• Accept-Post
• 415 Unsupported Media Type
• PATCH request method