React JS not working with Internet Explorer 9

Question

I\'m trying to use React with Internet Explorer 9 but getting the following errors even trying to run something very barebones:

SCRIPT438: Object doesn\'t suppor

Answer 1

In index.js file you have to add polyfill. These imports should be in the first of your import.

import 'react-app-polyfill/ie9';
import 'react-app-polyfill/ie11';   
//other imports

Now open in ur ie it works.

Before import you have to install react-app-polyfill.

 //To install use below command:

 npm install react-app-polyfill

link reference: https://www.npmjs.com/package/react-app-polyfill