title: Angular4 is not refreshing the page after code change
body: <p>When i changed the code in Angular4 then page is not refreshing. i have to again start the server using </p>
  
  <pre><code>ng serve --open
  </code></pre>
  
  <p>Every time i change I have to restart the server.</p>
  
  <p>Please guide me!</p>
  
  <p>Is there any other option to avoid this?</p>