id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
848	HTTP2 domain redirect error with ssl_verify_client	Jan Trejbal	Valentin V. Bartenev	"{{{#!nginx
server {
        server_name www.domain.tld;
        listen 443 ssl;
        listen 80;
        ssl_certificate         /etc/nginx/certs/...;
        ssl_certificate_key     /etc/nginx/certs/...;
        include ssl.conf;
        ssl_trusted_certificate /etc/nginx/certs/...;

        rewrite ^ https://domain.tld$request_uri? permanent;
}
server {
        server_name domain.tld;
        listen 443 ssl http2;
        listen 80;
        ssl_certificate         /etc/nginx/certs/...; #trusted
        ssl_certificate_key     /etc/nginx/certs/...;
        include ssl.conf;
        ssl_trusted_certificate /etc/nginx/certs/...;

        ssl_client_certificate  /etc/nginx/certs/.../ca.crt; #not trusted
        ssl_verify_client       optional; #use this produce error

        location /log {
                if ($ssl_client_verify != SUCCESS) {
                       	return 403;
                }
                ...
        }

        location / {
                ...
        }
}
}}}
ssl.conf:
{{{#!nginx
ssl_dhparam dhparam.pem;
    
ssl_prefer_server_ciphers on;
    
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers 'EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!RC4';

ssl_session_cache shared:SSL:50m;
ssl_session_timeout 5m;

ssl_stapling on;
ssl_stapling_verify on;
resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 5s;
}}}

Redirect in Chrome from https://www.domain.tld to https://domain.tld produce 400 Bad Request (on https://domain.tld) and browser do not ask for certificate.

In log I see:
{{{
2015/12/04 00:38:38 [notice] 48#48: *448 ""^"" matches ""/"", client: MY_IP, server: www.domain.tld, request: ""GET / HTTP/2.0"", host: ""www.domain.tld""
2015/12/04 00:38:38 [notice] 48#48: *448 rewritten redirect: ""https://domain.tld/"", client: MY_IP, server: www.domain.tld, request: ""GET / HTTP/2.0"", host: ""www.domain.tld""
2015/12/04 00:38:38 [info] 48#48: *448 client attempted to request the server name different from that one was negotiated while processing HTTP/2 connection, client: MY_IP, server: www.domain.tld, host: ""domain.tld""

}}}

This occurs when ssl_verify_client is set to optional|optional_no_ca|on
With not used http2 all is well. (Browser redirect and ask for client certificate)"	defect	closed	major		nginx-module	1.9.x	fixed	http2 client-certificate		Linux bbb6fdf82301 3.10.0-229.20.1.el7.x86_64 #1 SMP Tue Nov 3 19:10:07 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.9.7
built by gcc 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) 
built with OpenSSL 1.0.1e-fips 11 Feb 2013
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-http_auth_request_module --with-threads --with-stream --with-stream_ssl_module --with-mail --with-mail_ssl_module --with-file-aio --with-ipv6 --with-http_v2_module --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic'"