Merge pull request #6542 from marmelab/fix-demo-ie11

Fix demo does not work with ie11

Author: fzaninotto

examples/demo/package.json

@@ -21,12 +21,12 @@
         "ra-language-french": "^3.9.0",
         "react": "^17.0.0",
         "react-admin": "^3.9.0",
-        "react-app-polyfill": "^1.0.4",
+        "react-app-polyfill": "^2.0.0",
         "react-dom": "^17.0.0",
         "react-redux": "^7.1.0",
         "react-router": "^5.1.0",
         "react-router-dom": "^5.1.0",
-        "react-scripts": "^4.0.1",
+        "react-scripts": "^4.0.3",
         "recharts": "^1.8.5",
         "redux-saga": "^1.0.0"
     },

examples/demo/src/index.tsx

@@ -1,6 +1,10 @@
+/** @jsxRuntime classic */
 import 'react-app-polyfill/ie11';
 import 'react-app-polyfill/stable';
 import 'proxy-polyfill';
+// IE11 needs "jsxRuntime classic" for this initial file which means that "React" needs to be in scope
+// https://github.com/facebook/create-react-app/issues/9906
+
 import * as React from 'react';
 import ReactDOM from 'react-dom';