title: How to get Session ID in Swift 3
body: <p>I made a login application with 2 text field <code>username</code>, <code>password</code> and web view for after login. Here url</p>
  
  <pre><code>var request = URLRequest(url: URL(string: "https://website.com/tr/webservicelogin?_username=\(vc.username)&amp;_password=\(vc.password)&amp;status=login&amp;mobil=true")!)
  </code></pre>
  
  <p>When I enter the <code>username</code> and <code>password</code> these are display session id on webview page. I want to get this session id from cookie after login. Any idea? </p>