bug(polyfiller): check for `Promise` on global/window object

src/polyfills.js

@@ -1,6 +1,8 @@
 // Promise global, Used ( at least ) by 'whatwg-fetch'. And required by IE 11
 
-if(typeof Promise === "undefined") {
+import win from "core/window"
+
+if(typeof win.Promise === "undefined") {
   require("core-js/fn/promise")
 }
 

webpack-hot-dev-server.config.js

@@ -67,6 +67,7 @@ module.exports = require("./make-webpack-config")(rules, {
     publicPath: "/",
     noInfo: true,
     hot: true,
+    disableHostCheck: true, // for development within VMs
     stats: {
       colors: true
     },