added babel-polyfill to dev build to allow for testing in ie

build/webpack.dev.config.js

@@ -10,9 +10,7 @@ const resolve = file => require('path').resolve(__dirname, file)
 
 module.exports = {
   devtool: '#cheap-module-eval-source-map',
-  entry: {
-    app: './dev/index.js'
-  },
+  entry: ['babel-polyfill', './dev/index.js'],
   output: {
     path: resolve('../dev'),
     publicPath: '/dev/',

dev/index.html

@@ -11,4 +11,4 @@
     <div id="app"></div>
     <script src="/dev/bundle.js"></script>
   </body>
-</html>
+</html>

package.json

@@ -35,6 +35,7 @@
     "babel-plugin-module-resolver": "^2.7.1",
     "babel-plugin-transform-async-to-generator": "^6.24.1",
     "babel-plugin-transform-runtime": "^6.23.0",
+    "babel-polyfill": "^6.26.0",
     "babel-preset-env": "^1.5.1",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-stage-2": "^6.24.1",

yarn.lock

@@ -833,6 +833,14 @@ babel-polyfill@^6.23.0:
     core-js "^2.4.0"
     regenerator-runtime "^0.10.0"
 
+babel-polyfill@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.26.0.tgz#379937abc67d7895970adc621f284cd966cf2153"
+  dependencies:
+    babel-runtime "^6.26.0"
+    core-js "^2.5.0"
+    regenerator-runtime "^0.10.5"
+
 babel-preset-env@^1.5.1:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/babel-preset-env/-/babel-preset-env-1.6.0.tgz#2de1c782a780a0a5d605d199c957596da43c44e4"
@@ -947,6 +955,13 @@ babel-runtime@^6.0.0, babel-runtime@^6.18.0, babel-runtime@^6.22.0:
     core-js "^2.4.0"
     regenerator-runtime "^0.10.0"
 
+babel-runtime@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
+  dependencies:
+    core-js "^2.4.0"
+    regenerator-runtime "^0.11.0"
+
 babel-template@^6.16.0, babel-template@^6.24.1, babel-template@^6.25.0:
   version "6.25.0"
   resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.25.0.tgz#665241166b7c2aa4c619d71e192969552b10c071"
@@ -1542,7 +1557,7 @@ [email protected]:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
 
-core-js@^2.4.0:
+core-js@^2.4.0, core-js@^2.5.0:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.0.tgz#569c050918be6486b3837552028ae0466b717086"
 
@@ -5724,10 +5739,14 @@ regenerate@^1.2.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.3.2.tgz#d1941c67bad437e1be76433add5b385f95b19260"
 
-regenerator-runtime@^0.10.0:
+regenerator-runtime@^0.10.0, regenerator-runtime@^0.10.5:
   version "0.10.5"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
 
+regenerator-runtime@^0.11.0:
+  version "0.11.0"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.0.tgz#7e54fe5b5ccd5d6624ea6255c3473be090b802e1"
+
 [email protected]:
   version "0.9.11"
   resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.9.11.tgz#3a7d067520cb7b7176769eb5ff868691befe1283"