chore: update babel config and pkgs with ie11 compatibility

webapp/app/app.tsx

@@ -18,10 +18,6 @@
  * >>
  */
 
-import '@babel/polyfill'
-import 'url-search-params-polyfill'
-import 'array-flat-polyfill'
-
 import React from 'react'
 import ReactDOM from 'react-dom'
 import { Provider } from 'react-redux'

webapp/app/index.html

@@ -25,6 +25,7 @@
     <meta charset="utf-8">
     <!-- Make the page mobile compatible -->
     <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
 
     <!-- Allow installing the app to the homescreen -->
     <meta name="mobile-web-app-capable" content="yes">

webapp/babel.config.js

@@ -1,9 +1,26 @@
 module.exports = {
+  ignore: [
+    /\/core-js/,
+    /webpack\/buildin/
+  ],
+  overrides: [{
+    test: "./node_modules",
+  }],
+  sourceType: "unambiguous",
   presets: [
     [
       '@babel/preset-env',
       {
-        modules: false
+        modules: false,
+        useBuiltIns: 'usage',
+        corejs: {
+          version: 3,
+          proposals: true
+        },
+        targets: {
+          "chrome": 58,
+          "ie": 11
+        }
       }
     ],
     '@babel/preset-react',

webapp/internals/webpack/webpack.dev.babel.js

@@ -14,12 +14,10 @@ module.exports = require('./webpack.base.babel')({
   // Add hot reloading in development
   entry: {
     app: [
-      require.resolve('react-app-polyfill/ie11'),
       'webpack-hot-middleware/client?reload=true',
       path.join(process.cwd(), 'app/app.tsx') // Start with js/app.js
     ],
     share: [
-      require.resolve('react-app-polyfill/ie11'),
       'webpack-hot-middleware/client?reload=true',
       path.join(process.cwd(), 'share/app.tsx')
     ]

webapp/internals/webpack/webpack.prod.babel.js

@@ -13,11 +13,9 @@ module.exports = require('./webpack.base.babel')({
   // In production, we skip all hot-reloading stuff
   entry: {
     app: [
-      require.resolve('react-app-polyfill/ie11'),
       path.join(process.cwd(), 'app/app.tsx')
     ],
     share: [
-      require.resolve('react-app-polyfill/ie11'),
       path.join(process.cwd(), 'share/app.tsx')
     ]
   },