title: Angular 2: Maximum Call Stack size exceeded(Lazy Loading)
body: <p>I have been implementing lazy loading, everything was working fine till some point but suddenly I am getting below error.</p>
  
  <p>Any idea on what might be the possibilities </p>
  
  <pre><code>RangeError: Maximum call stack size exceeded
       at CatchSubscriber.OuterSubscriber [as constructor] (OuterSubscriber.ts:9)
       at new CatchSubscriber (catch.ts:48)
       at CatchOperator.call (catch.ts:35)
       at Observable.subscribe (Observable.ts:93)
       at Object.subscribeToResult (subscribeToResult.ts:32)
       at MergeAllSubscriber._next (mergeAll.ts:86)
       at MergeAllSubscriber.Subscriber.next (Subscriber.ts:95)
       at MapSubscriber._next (map.ts:84)
       at MapSubscriber.Subscriber.next (Subscriber.ts:95)
       at ArrayObservable._subscribe (ArrayObservable.ts:124)
  </code></pre>