build(cache): attempt to fix caching headers

docker/nginx-staging.conf

@@ -8,24 +8,26 @@ server {
     gzip_comp_level 5;
     gzip_types text/plain text/html text/css application/json application/javascript application/x-javascript text/javascript text/xml application/xml;
 
-    location / {
-        root   /usr/share/nginx/html;
-        index  index.html index.htm;
-
-        auth_basic "Staging site";
-        auth_basic_user_file /etc/nginx/.htpasswd;
-    }
-
     location ~* \.(html)$ {
         etag off;
         if_modified_since off;
         add_header Cache-Control "no-cache"
     }
 
     location ~* \.(ico|jpg|jpeg|png|js|css|woff|woff2)$ {
+        etag off;
+        if_modified_since off;
         add_header Cache-Control "public max-age=31536000 immutable"
     }
 
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+
+        auth_basic "Staging site";
+        auth_basic_user_file /etc/nginx/.htpasswd;
+    }
+
     error_page   500 502 503 504  /50x.html;
     location = /50x.html {
         root   /usr/share/nginx/html;