create-react-app not working with IE11 in development mode

Created on 12 Dec 2018 · 6Comments · Source: facebook/create-react-app

I'm using CRA2.1.1. I found it's not working with IE11 in dev mode. Same with this issue: #3034
Seems it's been fixed before, but it's not working now. Are we able to fix this?

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OK, I solved it finally, reading more closely here : you need to add import 'react-app-polyfill/ie9' at the first-line of the ./src/index.js

arnaudambro on 14 Dec 2018

👍3

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Exact same issue as in it's complaining about object assign in the console? Are you including the required polyfills?

heyimalex on 13 Dec 2018

Hello, for me it is still not working with IE11, even in production mode. It is working when I put <script src="https://cdn.polyfill.io/v2/polyfill.min.js"></script> but I can't do that.
And also I don't have support for fetch in IE11.

Is it made on purpose ?

arnaudambro on 14 Dec 2018

Not working also for me on IE9

MatteoGioioso on 14 Dec 2018

OK, I solved it finally, reading more closely here : you need to add import 'react-app-polyfill/ie9' at the first-line of the ./src/index.js

arnaudambro on 14 Dec 2018

👍3

Great thanks, it makes sense!

MatteoGioioso on 14 Dec 2018

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.