webpack polyfill

package.json

@@ -38,6 +38,7 @@
     "@babel/core": "^7.0.0-beta.54",
     "@babel/plugin-proposal-class-properties": "^7.0.0-beta.54",
     "@babel/plugin-transform-runtime": "^7.0.0-beta.56",
+    "@babel/polyfill": "^7.0.0-rc.1",
     "@babel/preset-env": "^7.0.0-beta.54",
     "@babel/preset-react": "^7.0.0-beta.54",
     "babel-eslint": "^8.2.2",

src/index.js

@@ -1,3 +1,4 @@
+import "@babel/polyfill";
 import {
   account,
   accountChangeLanguage,

webpack.config.js

@@ -1,7 +1,7 @@
 var path = require('path');
 
 module.exports = {
-  entry: ['./src/index.js'],
+  entry: ['@babel/polyfill', './src/index.js'],
   output: {
     path: path.resolve(__dirname, 'dist'),
     filename: 'index.js',

yarn.lock

@@ -556,6 +556,13 @@
     "@babel/helper-regex" "7.0.0-rc.1"
     regexpu-core "^4.1.3"
 
+"@babel/polyfill@^7.0.0-rc.1":
+  version "7.0.0-rc.1"
+  resolved "https://registry.yarnpkg.com/@babel/polyfill/-/polyfill-7.0.0-rc.1.tgz#c78e17e64c42cd6a2f5d8edf0f20e18213c0d74d"
+  dependencies:
+    core-js "^2.5.7"
+    regenerator-runtime "^0.11.1"
+
 "@babel/preset-env@^7.0.0-beta.54":
   version "7.0.0-rc.1"
   resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.0.0-rc.1.tgz#cb87a82fd3e44005219cd9f1cb3e9fdba907aae5"
@@ -1672,7 +1679,7 @@ core-js@^1.0.0:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
 
-core-js@^2.4.0:
+core-js@^2.4.0, core-js@^2.5.7:
   version "2.5.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
 
@@ -4395,7 +4402,7 @@ regenerate@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.4.0.tgz#4a856ec4b56e4077c557589cae85e7a4c8869a11"
 
-regenerator-runtime@^0.11.0:
+regenerator-runtime@^0.11.0, regenerator-runtime@^0.11.1:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"