title: setInterval stops after reload browser
body: <p>I'm making auto-logout feature in Angular.
  So I use <code>setInterval</code> for this, but, <code>setInterval</code> doesn't work after reloading the browser. I mean the timer disappears after reloading.
  If not reload, everything is fine.
  If you have any ideas to resolve this issue, please reply to me. Thank you.
  Here's my code</p>
  
  <pre><code>this.ngZone.runOutsideAngular(() =&gt; {
        this.timer = setInterval(() =&gt; {
          this.check();
        }, CHECK_INTERVALL);
      })
  </code></pre>