Unable to launch ionic lab

Hi friends, how are you? Quick question, I created a new ionic2 project after that I run : ionic lab (also tried with ionic serve --lab) but the browser did not open automatically, is that normal ? I have to open the browser and type localhost:8100 each time. the the device options in the right corner is not displayed.

My info:
Cordova CLI: 6.5.0
Ionic Framework Version: 2.0.0
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.0.0
ios-deploy version: Not installed
ios-sim version: Not installed
OS: Linux 4.7
Node Version: v6.9.5
Xcode version: Not installed

My node version is 6.9.7 I installed that version based on the ionic2 crash course in the official youtube channel, my npm version is 4.1.2 and I am using ubuntu 16.04

Any idea?