Use http_host for Host

Signed-off-by: Tommy <contact@tommytran.io>

etc/nginx/snippets/proxy.conf

@@ -16,7 +16,7 @@ proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
 proxy_set_header X-Original-URI $request_uri;
 
 # Forward host header
-proxy_set_header Host $host;
+proxy_set_header Host $http_host;
 
 # Upgrade connection
 proxy_set_header   Upgrade $http_upgrade;