Delete references to ES6 polyfill if you see them - they're not needed any more!

There's 122,000 files on Github that load just the ES6 polyfills using this URL:

https: //polyfill.io/v3/polyfill.min.js?features=es6

All major browsers have fully supported ES6 for nearly 10 years - since at least 2015 or 2016. The only outlier was IE11, which is end-of-life as of two years ago (June 2022).

If you see this URL referenced somewhere, it's safe to delete.

https://github.com/search?q=%22https%3A%2F%2Fpolyfill.io%2Fv3%2Fpolyfill.min.js%3Ffeatures%3Des6%22&type=code