Create-react-app: react-app-polyfills/ie9 does not support "FormData"

[Terryand]

Is this a bug report?

Yes

In IE9
react-app-polyfills/ie9 does not support "FormData"

Did you try recovering your dependencies?

No

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Which terms did you search for in User Guide?

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Environment

Windows10 + IE9

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Steps to Reproduce

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Expected Behavior

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Actual Behavior

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Reproducible Demo

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[ianschmitz]

That's expected behavior. FormData isn't available to IE10, and the IE9 polyfill you're referring to only adds minimal support for the APIs needed for Create React App.

Please see https://github.com/facebook/create-react-app/blob/master/packages/react-app-polyfill/README.md

[Timer]

Maybe we can update the readme that if you need more features, like this, you must include them manually.

[Terryand]

OK
Thanks.