RFC 2068:Hypertext Transfer Protocol -- HTTP/1.1
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HTTP request


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... request An HTTP request message, as defined in section 5. response ...
... HTTP communication, though the tunnel may have been initiated by an HTTP request. The tunnel ceases to exist when both ends of the relayed connections ...


... The entity-body (if any) sent with an HTTP request or response is in a format and encoding defined by the entity ...


... and memory used for TCP protocol control blocks is also saved. o HTTP requests and responses can be pipelined on a connection. Pipelining ...


... dependent upon the new protocol chosen, although the first action after changing the protocol MUST be a response to the initial HTTP request containing the Upgrade header field. ...


... Implementations of HTTP origin servers SHOULD be careful to restrict the documents returned by HTTP requests to be only those that were intended by the server administrators ...



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