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Issue created by Administrator@rootContributor

Clarify polyfilling and browserlist usage documentation

Created by: hugomallet

Hi,

The docs about supported browsers is not clear.

After reading it i still dont understand the following :

  • If the polyfills are not imported, what the browserlist field in package.json is used for ?
  • If i need to support ie11 (and Array.includes for example), what do i need to do exactly ?
  • Is @babel/preset-env used to automatically require polyfills ?
  • Moreover the docs from @babel/preset-env (included with preset react app) indicates to import @babel/polyfill which is now deprecated. react-app-polyfill/stable.js requires the correct package core-js/stable but is browserlist still used using this file ?

Thanks for your help