id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
2395	`proxy_pass https://example` if `upstream example { server example.com; }` is defined, uses port `80`, not `443` per `https`	amn@…		"Hi all,

I would think that in absence of a port number specified with the value of the `server` directive in an `upstream` block, when the upstream is used in a URL, like with the `proxy_pass` directive, then the presence of `https` as URL scheme should absolutely imply the port associated with HTTPS -- //443//. Instead, Nginx attempts to connect to the upstream on port //80// specifically.

Is this an issue that should be addressed? Shouldn't Nginx use port 443 when the upstream is used in a URL with the `https` scheme, like in the value of `proxy_pass` et al?

The current mitigation, in my humble opinion, impairs readability and is unnecessarily confusing, not to mention may surprise the reader:

{{{
upstream example { server example.com:443; } # Reader: Isn't HTTPS 443 by default? Why is `:443` necessary here? (Nginx: because by default it's 80, my dear chap)
proxy_pass https://example;
}}}"	enhancement	new	minor		nginx-module	1.23.x				Linux example.com 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed Feb 16 12:17:35 UTC 2022 x86_64 GNU/Linux	"nginx version: nginx/1.23.1
built by gcc 10.2.1 20210110 (Debian 10.2.1-6)
built with OpenSSL 1.1.1n  15 Mar 2022
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib/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='-g -O2 -ffile-prefix-map=/data/builder/debuild/nginx-1.23.1/debian/debuild-base/nginx-1.23.1=. -fstack-protector-strong -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -Wl,--as-needed -pie'"