id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
2079	Empty path in URL	ianton-ru@…		"Nginx does not accept url with empty path like `http://domain.com?param=value` and returns error `400: Bad Request`

RFC 7230 says that this kind of URL is valid and should be interpret as URL with path ""/"" (https://tools.ietf.org/html/rfc7230#section-2.7.3).

URLs like this makes for example official c++ SDK for AWS
(https://github.com/aws/aws-sdk-cpp/blob/master/aws-cpp-sdk-core/source/http/URI.cpp#L350)

As result, it's impossible to use nginx as proxy for requests to any AWS-compatible services (like Yandex Cloud Storage for example) from any software uses aws-sdk-cpp (like ClickHouse).

I believe that this thing is in nginx code here: https://github.com/nginx/nginx/blob/master/src/http/ngx_http_parse.c#L438 (and maybe some code does not expect empty path after parse).

PS. In nginx version field is our actual production version, but it reproducea with any version."	defect	closed	minor		nginx-core	1.19.x	fixed	url parse		Linux <hostname> 4.19.51-8 #1 SMP Mon Jun 17 18:06:03 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.14.2
built by clang
built with OpenSSL 1.1.1d  10 Sep 2019
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 --lock-path=/var/lock/nginx.lock --pid-path=/var/run/nginx.pid --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/lib/nginx/body --http-proxy-temp-path=/var/lib/nginx/proxy --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_degradation_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_xslt_module --with-http_v2_module --with-http_perl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module"