log url when bundle is valid

Author: egoist

template/build/dev-server.js

@@ -58,13 +58,17 @@ app.use(hotMiddleware)
 var staticPath = path.posix.join(config.dev.assetsPublicPath, config.dev.assetsSubDirectory)
 app.use(staticPath, express.static('./static'))
 
+var uri = 'http://localhost:' + port
+
+devMiddleware.waitUntilValid(function () {
+  console.log('> Listening at ' + uri + '\n')
+})
+
 module.exports = app.listen(port, function (err) {
   if (err) {
     console.log(err)
     return
   }
-  var uri = 'http://localhost:' + port
-  console.log('Listening at ' + uri + '\n')
 
   // when env is testing, don't need open it
   if (process.env.NODE_ENV !== 'testing') {