title: How to access Response cookies in angular2?
body: <p>I'm trying to access this cookies (the response ones):
  <a href="https://i.stack.imgur.com/IORUZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IORUZ.png" alt="enter image description here"></a></p>
  
  <p>When I open the request in the chrome debug tools in the network section I can clearly see that the cookies are present, but how can I access those values from my code? I've never worked with cookies before and I don't know what to do to "extract" them... I'm working on a Ionic2 project using Http.</p>
  
  <p>I've read that the <code>allowCredentials: true</code> header has to be sent but that didn't work... </p>
  
  <h2>Here's the request/response details:</h2>
  
  <p><a href="https://i.stack.imgur.com/jGL86.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jGL86.png" alt="enter image description here"></a></p>
  
  <h2>Here's the service:</h2>
  
  <pre><code>public callLogin(service_guid: string, pos_guid: string, login_data: Object) {
  
          return this.http.post(
              this.url + service_guid + "/" + pos_guid + "/ack", 
              login_data,
              {withCredentials: true}
              )
              .map(response =&gt; response.headers);
      }
  </code></pre>
  
  <h2>And the caller:</h2>
  
  <pre><code>this.__posService.callLogin(login_data.service_guid, login_data.pos_guid, {"password": data.password})
                              .subscribe(
                                  res =&gt; {
                                      console.log("Success:");
                                      console.log(res.get("apsession"); // this returns undefined
                                  },
                                  err =&gt; {
                                      console.log("Error:");
                                  }
                              );
  </code></pre>
  
  <p>When I try to access the cookie from the header it returns <strong>undefined</strong>. What am I doing wrong here? </p>