title: Angular CLI and auto-refresh
body: <p>I work with the Angular CLI and when I run "ng serve" the project is supposed to refresh automatically. However, sometimes, it's not perfect. Sometimes, changes are not refreshed automatically and sometimes it does. When changes are not refreshed, I have to re-run 'ng serve' which wastes a lot of time.</p>
  
  <p>Do you have any way to know in what cases changes are refreshed automatically and when they are not? Also, if I see that I have to re-run 'ng serve', is there any faster way to refresh the project? </p>