polyfill.io is a neat service that lets you load polyfills for newer JavaScript features only if the visitor's browser needs it.
ABAPers – What the heck is Polyfill and Shim?
Polyfill - Cross-Browser Support for JavaScript Projects (Support upto IE 8+) using React & Core JS
Uncategorized Archives - Andreas Wik
Differential serving vs. polyfill service: How to best serve modern and legacy browsers, by Dong Chen
Polyfill JavaScript Only When You Need To
Frontend freezing, not loading, waiting for cache - Support - Netlify Support Forums
Container queries begin to land in stable browsers while the polyfill gets a big update, Blog
Beyond Browsers: The Longterm Future of JavaScript Standards - The New Stack
Javascript Polyfills Explained Simply
Multiple builds targeting different browsers
Eternal Polyfilling of the Legacy Browser
Uncategorized Archives - Andreas Wik
GitHub - polyfills/polyfills: Bundle polyfills based on a User-Agent header
Array.filter() and Crafting Your Custom Polyfill, by Shankar J, Dec, 2023
Polyfills, transpilation, and browser support, by Dominic Fraser