In ReactSpa, fix HMR warning and correctly minify React for production

templates/ReactSpa/ClientApp/routes.tsx

@@ -10,3 +10,9 @@ export default <Route component={ Layout }>
     <Route path='/counter' components={{ body: Counter }} />
     <Route path='/fetchdata' components={{ body: FetchData }} />
 </Route>;
+
+// Allow Hot Module Reloading
+declare var module: any;
+if (module.hot) {
+    module.hot.accept();
+}

templates/ReactSpa/webpack.config.vendor.js

@@ -29,6 +29,9 @@ module.exports = {
         new webpack.DllPlugin({
             path: path.join(__dirname, 'wwwroot', 'dist', '[name]-manifest.json'),
             name: '[name]_[hash]'
+        }),
+        new webpack.DefinePlugin({
+            'process.env.NODE_ENV': isDevBuild ? '"development"' : '"production"'
         })
     ].concat(isDevBuild ? [] : [
         new webpack.optimize.UglifyJsPlugin({ compress: { warnings: false } })