Generating the domain inside the style JSON files dynamically (using nginx sub_filter).

modules/http_host/http_host_lib/nginx_confs/le.conf

@@ -46,6 +46,11 @@ server {
         expires 1d;
         default_type application/json;
 
+        # substitute the domain in the TileJSON
+        sub_filter '__TILEJSON_DOMAIN__' '__DOMAIN__';
+        sub_filter_once off;
+        sub_filter_types '*';
+
         add_header 'Access-Control-Allow-Origin' '*' always;
         add_header Cache-Control public;
     }