title: Angular 2 HTTP get handling 404 error
body: <p>I have a service which served an empty json, but i am getting these errors. If i use <a href="https://jsonplaceholder.typicode.com/posts/6" rel="noreferrer">https://jsonplaceholder.typicode.com/posts/6</a> then its ok. How can i handle these errors in the correct way?</p>
  
  <p>Service:</p>
  
  <pre><code>constructor( private http:Http ) { }
  
  fetchData(){
    return this.http.get('https://jsonplaceholder.typicode.com/psts/6')
        .map(
            (res) =&gt; res.json()
        )
        .subscribe(
          (data) =&gt; console.log(data)
    );
  }
  </code></pre>
  
  <p>Error:</p>
  
  <p><a href="https://i.stack.imgur.com/NGNS9.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/NGNS9.jpg" alt="enter image description here"></a></p>