message: Set devtool to source-map during development ts-loader seem to work better with it
diff: @@ -45,6 +45,7 @@ try {
  // The production configuration is different and lives in a separate file.
  module.exports = {
  mode: 'development',
  + devtool: 'source-map',
  // You may want 'eval' instead if you prefer to see the compiled output in DevTools.
  // See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
  