increase cache duration

nginx/default.conf

@@ -34,7 +34,7 @@ server {
         #add_header 'Access-Control-Allow-Origin' $allow_origin;
 
         # Set Cache-Control
-        add_header Cache-Control "max-age=3600, stale-while-revalidate=604800";
+        add_header Cache-Control "max-age=86400, stale-while-revalidate=604800";
 
         # If you need to see nginx cache status. Uncomment line below.
         add_header X-Cache-Status $upstream_cache_status;