(registered by RFC2616, last updated 2021-10-06)

Type name:  message

Subtype name:  http

Required parameters:  N/A

Optional parameters:  version, msgtype

   version:  The HTTP-version number of the enclosed message (e.g.,
      "1.1").  If not present, the version can be determined from the
      first line of the body.

   msgtype:  The message type - "request" or "response".  If not
      present, the type can be determined from the first line of the
      body.

Encoding considerations:  only "7bit", "8bit", or "binary" are
   permitted

Security considerations:  see Section 11

Interoperability considerations:  N/A

Published specification:  RFC 9112 (see Section 10.1).

Applications that use this media type:  N/A

Fragment identifier considerations:  N/A

Additional information:  Magic number(s):  N/A

                         Deprecated alias names for this type:  N/A

                         File extension(s):  N/A

                         Macintosh file type code(s):  N/A

Person and email address to contact for further information:  See Aut
   hors' Addresses section.

Intended usage:  COMMON

Restrictions on usage:  N/A

Author:  See Authors' Addresses section.

Change controller:  IESG