for serve command, write build to disk and rewrite sourcemaps so vsco…

…de can load the files for debugging

webpack.config.cli.js

@@ -9,6 +9,7 @@ module.exports = {
     filename: 'bundle.[name][contenthash].js',
     chunkFilename: 'chunk.[name][chunkhash].js',
     publicPath: '/',
-    clean: true
+    clean: true,
+    devtoolModuleFilenameTemplate: 'file:///[absolute-resource-path]'  // map to source with absolute file path not webpack:// protocol
   },
 };

webpack/serve.js

@@ -63,6 +63,7 @@ module.exports = function serve(stripesConfig, options) {
     app.use(webpackDevMiddleware(compiler, {
       stats: 'errors-only',
       publicPath: config.output.publicPath,
+      writeToDisk: true,
     }));
 
     app.use(webpackHotMiddleware(compiler));