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Status:

PROPOSED STANDARD

Authors:

K. Oku
L. Pardue

Stream:

IETF

Source:

httpbis (wit)

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DOI:  https://doi.org/10.17487/RFC9218

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Abstract

This document describes a scheme that allows an HTTP client tocommunicate its preferences for how the upstream server prioritizesresponses to its requests, and also allows a server to hint to adownstream intermediary how its responses should be prioritized whenthey are forwarded. This document defines the Priority header fieldfor communicating the initial priority in an HTTP version-independentmanner, as well as HTTP/2 and HTTP/3 frames for reprioritizingresponses. These share a common format structure that is designed toprovide future extensibility.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.