Xin giúp lỗi Access-Control-Allow-Origin

Mình có trang web như sau http://monetization.freecluster.eu/wp-admin user: monetization pass: admin Kiểm tra console thì nó mắc lỗi [QUOTE] Access to script at 'url.js' from origin 'website' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. w3schools_footer.js:1 Failed to load resource: net::ERR_FAILED [/QUOTE] Mặc dù mình đã bổ sung