polyfill-library: Cannot redefine non-configurable property 'values' on <= IE11
I’ve included this before my bundle:
<script type='text/javascript' src='https://cdn.polyfill.io/v2/polyfill.min.js?features=default%2Ces6%2Cfetch&ver=4.8.2'></script>
However, IE11 (and lower) crash on an error:

About this issue
- Original URL
- State: closed
- Created 7 years ago
- Comments: 18 (2 by maintainers)
Commits related to this issue
- Use `babel-polyfill` in place of `polyfill.io` CDN There appears to be a number of issues with using `polyfill.io` with slack. While trying to run the example app on IE 11, I ran into each of the fol... — committed to davegw/slate by davegw 6 years ago
- Use `babel-polyfill` in place of `polyfill.io` CDN There appears to be a number of issues with using `polyfill.io` with slack. While trying to run the example app on IE 11, I ran into each of the fol... — committed to davegw/slate by davegw 6 years ago
- Use `babel-polyfill` in place of `polyfill.io` CDN There appears to be a number of issues with using `polyfill.io` with slate. While trying to run the example app on IE 11, I ran into each of the fol... — committed to davegw/slate by davegw 6 years ago
- Use `babel-polyfill` in place of `polyfill.io` CDN There appears to be a number of issues with using `polyfill.io` with slate. While trying to run the example app on IE 11, I ran into each of the fol... — committed to davegw/slate by davegw 6 years ago
- Use `babel-polyfill` in place of `polyfill.io` CDN Update provides support for running the examples app on IE 11. There appeared to be a number of issues with using `polyfill.io` with slate. While t... — committed to davegw/slate by davegw 6 years ago
- Use `babel-polyfill` in place of `polyfill.io` CDN (#2496) Update provides support for running the examples app on IE 11. There appeared to be a number of issues with using `polyfill.io` with sla... — committed to ianstormtaylor/slate by davegw 5 years ago
Experiencing the same issues in IE11 where the minified build doesn’t work.
This works fine: https://cdn.polyfill.io/v2/polyfill.js?features=es5,es6,es2016,es2017|gated&flags=gated&unknown=polyfill&callback=onPolyfillsLoad
This crashes: https://cdn.polyfill.io/v2/polyfill.min.js?features=es5,es6,es2016,es2017|gated&flags=gated&unknown=polyfill&callback=onPolyfillsLoad
with the error
Cannot redefine non-configurable property 'values'in IE11Nope. I recalled one site that I made and used polyfill.io, and it seems to be working.
I’ve since used Webpack & babel-polyfill for polyfilling.
This has been fixed in recent releases of polyfill.io and polyfill-library
Hey guys. I’ve just faced the same issue.
It work fine for me on non-minified version, but I get the same error in .min.js version. This seems to be coming from
es6feature