title: Activated Route URL Always Empty
body: <p>Consider the following service,</p>
  
  <pre><code>@Injectable()
  export class SagasService {
      constructor(private route : ActivatedRoute, private router : Router ){
      router.events
          .filter(e =&gt; e instanceof NavigationStart)
          .subscribe(e=&gt;{
              route.url.subscribe(a=&gt;console.log(a[0].path));
          });
      }
  }
  </code></pre>
  
  <p>Every time the route changes, the <code>console.log()</code> triggers. But, no matter what the route, the value is always <code>""</code> (empty string).</p>
  
  <p>What is wrong here?</p>