id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
2573	Nothing $http_host variable of with-http_v3_module	thinker0@…		"HTTP3+QUIC

There is no $http_host value in http_v3, so there is no value when transmitting the Host Header to upstream.

```
listen 443 quic reuseport;
listen 443 ssl backlog=65000;
http2    on;
http3    on;
.....
proxy_set_header Host               $http_host;
```

upstream $http_host Host http header nothing "	defect	closed	minor		documentation	1.25.x	duplicate			Linux xxx 5.12.19-1.20211015.el7.x86_64 #1 SMP Fri Oct 15 18:59:58 JST 2021 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.25.3
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC)
built with OpenSSL 3.0.10+quic 1 Aug 2023
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-http_v3_module --with-openssl=../openssl --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 -I../openssl/.openssl/include/openssl -DNGX_QUIC_DEBUG_PACKETS -DNGX_QUIC_DEBUG_CRYPTO' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie -L../openssl/.openssl/include/lib'"