feat: enabling web sockets through proxy server

Author: ProgrammingByPermutation

nginx/filesystem/etc/nginx/conf.d/nginx.conf

@@ -1,3 +1,8 @@
+map $http_upgrade $connection_upgrade {
+        default upgrade;
+        '' close;
+}
+
 server {
     gzip on;
     gzip_vary on;
@@ -50,6 +55,9 @@ server {
 		 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 		 proxy_set_header X-Forwarded-Proto $scheme;
 		 proxy_set_header X-Forwarded-Port $server_port;
+		 # Headers required for web socket connections
+		 proxy_set_header Upgrade $http_upgrade;
+		 proxy_set_header Connection $connection_upgrade;
 	}
 
 	location /null/v1 {