message: Adding comma to generateSW object
diff: @@ -134,7 +134,7 @@ const generateServiceWorker = require('polymer-build').generateServiceWorker;
  generateServiceWorker({
  buildRoot: 'build/',
  project: project,
  - bundled: true // set if `project.bundler` was used
  + bundled: true, // set if `project.bundler` was used
  swPrecacheConfig: {
  // See https://github.com/GoogleChrome/sw-precache#options-parameter for all supported options
  navigateFallback: '/index.html',
  