fix: keep public demo online during optional upstream DNS outages

neode-ui/docker/nginx-demo.conf

@@ -195,6 +195,8 @@ http {
     server {
         listen 2101;
         server_name _;
+        resolver __ARCHY_DNS_RESOLVERS__ valid=30s ipv6=off;
+        resolver_timeout 3s;
 
         # Demo sign-in seeder, served same-origin to the proxied SPA.
         location = /__demo/indee-demo-signin.js {
@@ -203,7 +205,8 @@ http {
         }
 
         location / {
-            proxy_pass https://indee.tx1138.com;
+            set $indee_host indee.tx1138.com;
+            proxy_pass https://$indee_host$request_uri;
             proxy_ssl_server_name on;
             proxy_ssl_name indee.tx1138.com;
             proxy_set_header Host indee.tx1138.com;