cookies are not send if location contains trailing slash

[bbrand84@…]

We had the issue that cookies were not send when a location path has a trailing / and location was != /.

This means that the variable $http_cookie was also empty.

Underneath the conf file, the part of interest is in the bottom (locations) and commented.

Hope this helps!

# If we receive X-Forwarded-Proto, pass it through; otherwise, pass along the
# scheme used to connect to this server
map $http_x_forwarded_proto $proxy_x_forwarded_proto {
  default $http_x_forwarded_proto;
  ''      $scheme;
}
# If we receive X-Forwarded-Port, pass it through; otherwise, pass along the
# server port the client connected to
map $http_x_forwarded_port $proxy_x_forwarded_port {
  default $http_x_forwarded_port;
  ''      $server_port;
}
# If we receive Upgrade, set Connection to "upgrade"; otherwise, delete any
# Connection header that may have been passed to this server
map $http_upgrade $proxy_connection {
  default upgrade;
  '' close;
}
# Set appropriate X-Forwarded-Ssl header
map $scheme $proxy_x_forwarded_ssl {
  default off;
  https on;
}
gzip_types text/plain text/css application/javascript application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
log_format vhost '$host $remote_addr - $remote_user [$time_local] '
                 '"$request" $status $body_bytes_sent '
                 '"$http_referer" "$http_user_agent"';
access_log off;
# HTTP 1.1 support
proxy_http_version 1.1;
proxy_buffering off;
proxy_set_header Host $http_host;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $proxy_connection;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $proxy_x_forwarded_proto;
proxy_set_header X-Forwarded-Ssl $proxy_x_forwarded_ssl;
proxy_set_header X-Forwarded-Port $proxy_x_forwarded_port;
# Mitigate httpoxy attack (see README for details)
proxy_set_header Proxy "";
server {
        server_name _; # This is just an invalid value which will never trigger on a real hostname.
        listen 80;
        access_log /var/log/nginx/access.log vhost;
        return 503;
}

cat /etc/nginx/conf.d/nginx_reverse_proxy.conf 
upstream liferay {
    ip_hash;
    server  liferay_serv:8080; 
}

server {
        server_name reverse_proxy;
        listen 443;

    ssl                  on;
    ssl_certificate      /etc/nginx/certs/etb.crt;
    ssl_certificate_key  /etc/nginx/certs/etb.key;

  ssl_session_cache shared:SSL:10m;

  ssl_session_timeout 5m;

  ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES";
  ssl_prefer_server_ciphers on;

#the / location DOES send cookies
  location / {

     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header Host $http_host;
     proxy_set_header X-Forwarded-Proto https;
     proxy_redirect off;
     proxy_connect_timeout 240;
     proxy_send_timeout 240;
     proxy_read_timeout 240;     

     proxy_pass http://liferay;
  }
#NON-working version (no cookies sent):
# location /o/websocket/ {
#like this, it DOES works (cookies are sent):
  location /o/websocket {
  
     proxy_http_version 1.1;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "upgrade";
     proxy_read_timeout 86400;
  
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header Host $http_host;
     proxy_set_header X-Forwarded-Proto https;
     proxy_redirect off;

     proxy_pass http://liferay;
  }

[Maxim Dounin]

Quoting the location directive ​documentation:

If a location is defined by a prefix string that ends with the slash character, and requests are processed by one of proxy_pass, fastcgi_pass, uwsgi_pass, scgi_pass, or memcached_pass, then the special processing is performed. In response to a request with URI equal to this string, but without the trailing slash, a permanent redirect with the code 301 will be returned to the requested URI with the slash appended. If this is not desired, an exact match of the URI and location could be defined like this:

location /user/ {
    proxy_pass http://user.example.com;
}

location = /user {
    proxy_pass http://login.example.com;
}

If you have further question on how to configure nginx properly, please use the ​mailing list.