No Unwanted Polyfill.io
Source URL: https://nextjs.org/docs/messages/no-unwanted-polyfillio
No Unwanted Polyfill.io
Section titled “No Unwanted Polyfill.io”Prevent duplicate polyfills from Polyfill.io.
Why This Error Occurred
Section titled “Why This Error Occurred”You are using polyfills from Polyfill.io and including polyfills already shipped with Next.js. This unnecessarily increases page weight which can affect loading performance.
Possible Ways to Fix It
Section titled “Possible Ways to Fix It”Remove all duplicate polyfills. If you need to add polyfills but are not sure if Next.js already includes it, take a look at the list of supported browsers and features.