[9.6-5] MUST NOT: A client that sends a "close" connection option MUST NOT send further requests on that connection (a...

[saviorand]

RFC 9112 Requirement

Section: 9.6-5
Keyword: MUST NOT

A client that sends a "close" connection option MUST NOT send further requests on that connection (after the one containing the "close") and MUST close the connection after reading the final response message corresponding to this request.¶

Reference: https://www.rfc-editor.org/rfc/rfc9112.html#section-9.6-5