title: Angular 4 : get error message in subscribe
body: <p>In the service, there is this code :</p>
  
  <pre><code>  getUser(id){
      return this.http.get('http:..../' + id)
        .map(res =&gt; res.json());
    }
  </code></pre>
  
  <p>In the component : </p>
  
  <pre><code>this.myService.getUser(this.id).subscribe((customer) =&gt; {
    console.log(customer);
    this.customer = customer,
    (err) =&gt; console.log(err)
  });
  </code></pre>
  
  <p>When it's the 'customer' exist, no problem I get all the information about the customer.</p>
  
  <p>When the id does not exist, the web api return 'BadRequest' with a message. How can I get this message ? the status ?</p>
  
  <p>Thanks,</p>