[9.3.2-1] MAY: A client that supports persistent connections MAY "pipeline" its requests (i.e., send multiple reque...

[saviorand]

RFC 9112 Requirement

Section: 9.3.2-1 Keyword: MAY

A client that supports persistent connections MAY "pipeline" its requests (i.e., send multiple requests without waiting for each response). A server MAY process a sequence of pipelined requests in parallel if they all have safe methods (Section 9.2.1 of [HTTP]), but it MUST send the corresponding responses in the same order that the requests were received.¶

Reference: https://www.rfc-editor.org/rfc/rfc9112.html#section-9.3.2-1