Skip to main content

RFC 9218 - Extensible Prioritization Scheme for HTTP

Publication Date: June 2022
Status: Standards Track
Authors: K. Oku (Fastly), L. Pardue (Cloudflare)

Abstract​

This document describes a scheme that allows an HTTP client to communicate its preferences for how the upstream server prioritizes responses to its requests, and also allows a server to hint to a downstream intermediary how its responses should be prioritized when they are forwarded. This document defines the Priority header field for communicating the initial priority in an HTTP version-independent manner, as well as HTTP/2 and HTTP/3 frames for reprioritizing responses. These share a common format structure that is designed to provide future extensibility.

Table of Contents​

Last updated on