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HTTP/2: removed server push (ticket #2432).
Although it has better implementation status than HTTP/3 server push,
it remains of limited use, with adoption numbers seen as negligible.
Per IETF 102 materials, server push was used only in 0.04% of sessions.
It was considered to be "difficult to use effectively" in RFC 9113.
Its use is further limited by badly matching to fetch/cache/connection
models in browsers, see related discussions linked from [1].
Server push was disabled in Chrome 106 [2].
The http2_push, http2_push_preload, and http2_max_concurrent_pushes
directives are made obsolete. In particular, this essentially reverts
7201:641306096f5b and 7207:3d2b0b02bd3d.
[1] https://jakearchibald.com/2017/h2-push-tougher-than-i-thought/
[2] https://chromestatus.com/feature/6302414934114304
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Thu, 08 Jun 2023 16:56:46 +0400 |
parents | d620f497c50f |
children |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. ngx_include="unistd.h"; . auto/include ngx_include="inttypes.h"; . auto/include ngx_include="limits.h"; . auto/include ngx_include="sys/filio.h"; . auto/include ngx_include="sys/param.h"; . auto/include ngx_include="sys/mount.h"; . auto/include ngx_include="sys/statvfs.h"; . auto/include ngx_include="crypt.h"; . auto/include