aspnet-webpack auto-loads 'event-source-polyfill' on client when HMR is enabled. This requires 'event-source-polyfill' to be included in the client-side bundle, so it's also now added to all the templates' vendor bundles. Fixes #365.

templates/ReactSpa/package.json

@@ -10,6 +10,7 @@
     "babel-preset-react": "^6.5.0",
     "bootstrap": "^3.3.6",
     "css-loader": "^0.23.1",
+    "event-source-polyfill": "^0.0.7",
     "extract-text-webpack-plugin": "^1.0.1",
     "file-loader": "^0.8.5",
     "isomorphic-fetch": "^2.2.1",

templates/ReactSpa/webpack.config.vendor.js

@@ -15,7 +15,7 @@ module.exports = {
         ]
     },
     entry: {
-        vendor: ['bootstrap', 'bootstrap/dist/css/bootstrap.css', 'isomorphic-fetch', 'react', 'react-dom', 'react-router', 'style-loader', 'jquery'],
+        vendor: ['bootstrap', 'bootstrap/dist/css/bootstrap.css', 'event-source-polyfill', 'isomorphic-fetch', 'react', 'react-dom', 'react-router', 'style-loader', 'jquery'],
     },
     output: {
         path: path.join(__dirname, 'wwwroot', 'dist'),