Security News > 2024 > June > Cloudflare: We never authorized polyfill.io to use our name
Further, to keep the internet safe, Cloudflare is automatically replacing polyfill.io links with a safe mirror on websites that use Cloudflare protection.
Cloudflare has criticized Polyfill.io's unauthorized usage of its name and logo as it could mislead users into believing that the illicit website is endorsed by Cloudflare.
"Contrary to what is stated on the polyfill.io website, Cloudflare has never recommended the polyfill.io service or authorized their use of Cloudflare's name on their website," the Cloudflare team wrote in a blog post published yesterday.
Over the last 24 hours, Cloudflare has released an automatic URL rewriting service to replace any polyfill.io links on the websites of Cloudflare customers with a safe mirror CDN setup by Cloudflare.
"We have, over the last 24 hours, released an automatic JavaScript URL rewriting service that will rewrite any link to polyfill.io found in a website proxied by Cloudflare to a link to our mirror under cdnjs," announced the Cloudflare team in the same blog post.
Cloudflare users can find this new setting under Security Settings on any zone using Cloudflare.