updated nginx configuration for signalr

etc/docker/nginx/conf.d/default.conf

@@ -239,7 +239,12 @@ server {
 
   location / {
     proxy_pass http://eshop-st-gateway-web-public:80;
-    proxy_set_header Host $host;
+    proxy_set_header   Upgrade $http_upgrade;
+    proxy_set_header   Connection keep-alive;
+    proxy_set_header   Host $host;
+    proxy_cache_bypass $http_upgrade;
+    proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header   X-Forwarded-Proto $scheme;
   }
 }
 server {
@@ -253,7 +258,12 @@ server {
 
   location / {
     proxy_pass http://eshop-st-gateway-web-public:80;
-    proxy_set_header Host $host;
+    proxy_set_header   Upgrade $http_upgrade;
+    proxy_set_header   Connection keep-alive;
+    proxy_set_header   Host $host;
+    proxy_cache_bypass $http_upgrade;
+    proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header   X-Forwarded-Proto $scheme;
   }
 }
 server {