HTTP functions not supported by CICS Web support

The HTTP/1.1 specification defines various roles for the parties that make use of the HTTP protocol. CICS® Web support carries out many of the functions that are appropriate for an origin server, for a client, and for a user agent (although a human user might not be involved for every HTTP client request). The HTTP/1.1 specification also includes requirements that relate to proxies, gateways, tunnels and caches, and these requirements are not relevant to CICS Web support and can be ignored.

See The HTTP protocol for more information about the HTTP specifications.