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HTTP/2: removed support for NPN.
NPN was replaced with ALPN, published as RFC 7301 in July 2014.
It used to negotiate SPDY (and, in transition, HTTP/2).
NPN supported appeared in OpenSSL 1.0.1. It does not work with TLSv1.3 [1].
ALPN is supported since OpenSSL 1.0.2.
The NPN support was dropped in Firefox 53 [2] and Chrome 51 [3].
[1] https://github.com/openssl/openssl/issues/3665.
[2] https://bugzilla.mozilla.org/show_bug.cgi?id=1248198
[3] https://www.chromestatus.com/feature/5767920709795840
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Fri, 15 Oct 2021 10:02:15 +0300 |
parents | 549b13cd793b |
children |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. NGX_MAKEFILE=$NGX_OBJS/Makefile NGX_MODULES_C=$NGX_OBJS/ngx_modules.c NGX_AUTO_HEADERS_H=$NGX_OBJS/ngx_auto_headers.h NGX_AUTO_CONFIG_H=$NGX_OBJS/ngx_auto_config.h NGX_AUTOTEST=$NGX_OBJS/autotest NGX_AUTOCONF_ERR=$NGX_OBJS/autoconf.err # STUBs NGX_ERR=$NGX_OBJS/autoconf.err MAKEFILE=$NGX_OBJS/Makefile NGX_PCH= NGX_USE_PCH= # check the echo's "-n" option and "\c" capability if echo "test\c" | grep c >/dev/null; then if echo -n test | grep n >/dev/null; then ngx_n= ngx_c= else ngx_n=-n ngx_c= fi else ngx_n= ngx_c='\c' fi # create Makefile cat << END > Makefile default: build clean: rm -rf Makefile $NGX_OBJS .PHONY: default clean END