Polyfill.io is a service which makes web development less frustrating by selectively polyfill just what the browser needs. Polyfill.io reads the User-Agent header of each request and returns polyfill that are suitable for the requesting browser.
We have transitioned to utilizing Cloudflare as our Content Delivery Network (CDN) provider. We apologize for any inconvenience that may have arisen during this migration period. Please rest assured that we will continue to offer the polyfill service at no cost.
