How to allow access outside localhost

Question

How can I allow access outside the localhost at Angular2? I can navigate at localhost:3030/panel easily but I can not navigate when I write my IP such as

Answer 1

Mac users:

1. Go to System Preferences -> Network -> Wi-Fi
2. Copy the IP address below Status (Usually 192.168.1.x)
3. Paste it in your ng serve like: ng serve --host 192.168.1.x

Then you must be able to see your page on other devices through 192.168.1.x:4200.