From 1db517fb71aed6d6fffc8347086f89eb29b83dea Mon Sep 17 00:00:00 2001
From: Vladimir Homutov <vl@nginx.com>
Date: Fri, 15 Oct 2021 10:02:15 +0300
Subject: 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
---
 src/http/v2/ngx_http_v2.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'src/http/v2')

diff --git a/src/http/v2/ngx_http_v2.h b/src/http/v2/ngx_http_v2.h
index 349229711..0eceae3d5 100644
--- a/src/http/v2/ngx_http_v2.h
+++ b/src/http/v2/ngx_http_v2.h
@@ -13,8 +13,7 @@
 #include <ngx_http.h>
 
 
-#define NGX_HTTP_V2_ALPN_ADVERTISE       "\x02h2"
-#define NGX_HTTP_V2_NPN_ADVERTISE        NGX_HTTP_V2_ALPN_ADVERTISE
+#define NGX_HTTP_V2_ALPN_PROTO           "\x02h2"
 
 #define NGX_HTTP_V2_STATE_BUFFER_SIZE    16
 
-- 
cgit