id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
2518	if in location with regex capture will reset numeric variable like $1 from captured group but not for named capture group	n0099@…		"This works:
{{{#!nginx
location ~ /uploads/(?<filePath>.*)$ {
    if ($http_referer !~ ""^https://example.com"") {
        return 403;
    }
    more_set_headers  'X-Path: $1' 'X-Path2: $filePath' 'X-Referer: $http_referer';
    try_files $uri altUploads/$filePath ../otherUploads/$filePath =404;
}
}}}
and this won't:
{{{#!nginx
location ~ /uploads/(.*)$ {
    if ($http_referer !~ ""^https://example.com"") {
        return  403;
    }
    more_set_headers  'X-Path: $1' 'X-Referer: $http_referer';
    try_files   $uri altUploads/$1 ../otherUploads/$1 =404;
}
}}}
The `X-Path` header doesn't exist in the response header when requesting the latter one.
If we remove the whole if block both variable and headers will be appeared in the response.
{{{#!nginx
location ~ /uploads/(.*)$ {
    more_set_headers  'X-Path: $1' 'X-Referer: $http_referer';
    try_files   $uri altUploads/$1 ../otherUploads/$1 =404;
}
}}}"	defect	closed	minor		nginx-core	1.25.x	duplicate			Linux azure 5.15.0-67-generic #74-Ubuntu SMP Wed Feb 22 14:14:39 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.25.1
built by gcc 11.2.0 (Ubuntu 11.2.0-19ubuntu1)
built with OpenSSL 3.0.2 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-http_v3_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-1.25.1/debian/debuild-base/nginx-1.25.1=. -flto=auto -ffat-lto-objects -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fPIC' --with-ld-opt='-Wl,-Bsymbolic-functions -flto=auto -ffat-lto-objects -flto=auto -Wl,-z,relro -Wl,-z,now -Wl,--as-needed -pie'"