8 Entity
8 Entity
Request and Response messages MAY transfer an entity if not otherwise restricted by the request method or response status code. An entity consists of entity-header fields and an entity-body, although some responses will only include the entity-headers.
In this section, both sender and recipient refer to either the client or the server, depending on who sends and who receives the entity.
8.1 Entity Header Fields
Entity-header fields define optional metainformation about the entity-body or, if no body is present, about the resource identified by the request.
entity-header = Allow ; Section 12.4 | Content-Base ; Section 12.11 | Content-Encoding ; Section 12.12 | Content-Language ; Section 12.13 | Content-Length ; Section 12.14 | Content-Location ; Section 12.15 | Content-Type ; Section 12.16 | Expires ; Section 12.19 | Last-Modified ; Section 12.24 | extension-header extension-header = message-header
The extension-header mechanism allows additional entity-header fields to be defined without changing the protocol, but these fields cannot be assumed to be recognizable by the recipient. Unrecognized header fields SHOULD be ignored by the recipient and forwarded by proxies.
8.2 Entity Body
See [H7.2]