id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1549	HTTP2 push does not work due to incorrect scheme in proxy_protocol mode	Roel van Duijnhoven	Ruslan Ermilov <ru@…>	"I use the proxy_protocol because I send the tcp traffic via HaProxy to nginX. However HTTP2 push does not work with this set-up.

When I debug the difference between non-proxy and proxy mode using nghttp I get the following difference: 

[[Image(https://i.stack.imgur.com/OEU3H.png)]]

The resource *is* pushed, but has the wrong scheme.

Sample of configuration used:

{{{

    http {
        # This is the one I would like to use
        server {
            listen       8002 http2 proxy_protocol;

            server_name  _;
            root         /usr/share/nginx/html;

            location / {
                http2_push /image.jpg;
            }
        }

        # This one can be accessed directly; and *does* work
        server {
            listen       8004 http2 ssl;

            ssl_certificate certificate.pem;
            ssl_certificate_key private.key;

            server_name  _;
            root         /usr/share/nginx/html;

            location / {
                http2_push /image.jpg;
            }
        }
    }

}}}

I could not find a way to overwrite the scheme in nginX in a way that would solve this issue.

I first placed this issue on StackOverflow. That can be found here: https://stackoverflow.com/questions/50022621/using-http2-push-with-nginx-in-conjunction-with-haproxy-does-not-work

Thanks!"	defect	closed	minor		other		fixed	http2 push		Linux haproxy-machine 3.10.0-693.21.1.el7.x86_64 #1 SMP Wed Mar 7 19:03:37 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.14.0
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) 
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --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-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_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 -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie'"