What is this error (blocked by CORS policy)?

Question

opencart

The site has been in existence for about a year. A couple of months ago, the browser gives errors of this nature:

Access to font at ' https://site.ru/catalog/view/theme/oct_luxury/styl... ' from origin ' https://www.site.ru ' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Font-awesome icons are naturally not displayed on the site.

Site on Opencart 2.3.

What is wrong and how to fix it please tell me

Answer 1

site.ru and www.site.ru are two different sites. Naturally, requests from one to the resources of another will only work if the CORS policy is followed .