id summary reporter owner description type status priority milestone component version resolution keywords cc uname nginx_version 2278 Websocket Redirect port warrmr@… "Good Evenings, I have written an application that uses websockets that is running within a container behind an Nginx proxy and have been having problems getting websockets to work through the Nginx proxy. So I have boiled down the config to the bare bones in order to troubleshoot this issue and have found out that if I map the port 1:1 it works eg line 14 of the code snippet below changed to ""listen 55700;"" and it works I can connect a websocket to ws://domain:55700 but if I use the config below as it is and try and connect to ws://domain:8888 it fails and I am unable to see any errors in Nginx. {{{ events { worker_connections 1024; } http { map $http_upgrade $connection_upgrade { default upgrade; '' close; } upstream appserver { server demo-server:55700; } server { listen 8888; location / { proxy_pass http://appserver; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; } } } }}}" defect closed minor documentation invalid Linux 28ecfa61a682 5.4.0-77-generic #86-Ubuntu SMP Thu Jun 17 02:35:03 UTC 2021 x86_64 GNU/Linux "nginx version: nginx/1.21.3 built by gcc 8.3.0 (Debian 8.3.0-6) built with OpenSSL 1.1.1d 10 Sep 2019 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 -fdebug-prefix-map=/data/builder/debuild/nginx-1.21.3/debian/debuild-base/nginx-1.21.3=. -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'"