[upd] Support older browsers from 2016 including IE11

.babelrc

@@ -4,7 +4,21 @@
     "@babel/plugin-proposal-export-default-from",
     "@babel/plugin-proposal-class-properties"
   ],
-  "presets": [["@babel/preset-env"], "@babel/preset-react"],
+  "presets": [
+    [
+      "@babel/preset-env",
+      {
+        "modules": false,
+        "useBuiltIns": "usage",
+        "debug": true,
+        "corejs": {
+          "version": 3,
+          "proposals": true
+        }
+      }
+    ],
+    "@babel/preset-react"
+  ],
   "env": {
     "test": {
       "presets": ["@babel/preset-env", "@babel/preset-react"],

.browserslistrc

@@ -0,0 +1,5 @@
+> 1%
+since 2016
+not dead
+not op_mini all
+not and_qq 1.2

package.json

@@ -38,7 +38,7 @@
     "babel-runtime": "^6.26.0",
     "date-fns": "^2.13.0",
     "inputmask-core": "^2.2.0",
-    "jsonld": "1.8.1",
+    "jsonld": "^0.4.12",
     "jsonld-utils": "https://kbss.felk.cvut.cz/dist/jsonld-utils-0.0.11.tgz",
     "prop-types": "^15.7.2",
     "react-bootstrap": "^1.0.1",
@@ -61,9 +61,11 @@
     "@babel/plugin-transform-runtime": "^7.9.6",
     "@babel/preset-env": "^7.9.6",
     "@babel/preset-react": "^7.9.4",
+    "@babel/register": "^7.10.3",
     "babel-jest": "^26.0.1",
     "babel-loader": "^8.1.0",
     "clean-css-cli": "^4.3.0",
+    "core-js": "^3.6.5",
     "css-loader": "^3.5.3",
     "enzyme": "^3.11.0",
     "enzyme-adapter-react-16": "^1.15.2",

webpack.config.dev.js

@@ -5,13 +5,14 @@ const HtmlWebpackPlugin = require('html-webpack-plugin');
 module.exports = {
   mode: 'development',
   context: resolve('test'),
-  entry: './rendering/TestApp.jsx',
+  entry: ['core-js/stable/object/assign', 'core-js/stable/promise', './rendering/TestApp.jsx'],
   output: {
     filename: 'bundle.js',
     path: resolve('build/'),
     publicPath: '/'
   },
   devServer: {
+    host: '0.0.0.0',
     port: 8888,
     historyApiFallback: true
   },
@@ -27,10 +28,7 @@ module.exports = {
     ]
   },
   resolve: {
-    extensions: ['.js', '.jsx', '.json'],
-    alias: {
-      jsonld: resolve('./node_modules/jsonld/dist/jsonld.js')
-    }
+    extensions: ['.js', '.jsx', '.json']
   },
   plugins: [
     new HtmlWebpackPlugin({