title: Open iOS web view without cookies
body: <p>If I have an iOS app, how can I open a browser view inside the app (upon the user tapping a button) which contains <em>no</em> cookies from <em>any</em> domains?</p>
  
  <p>This means the browser view should not remember cookies from the previous time the user opened the browser, nor share cookies with the <code>Safari</code> app.</p>
  
  <p>There are now three classes to do web views as far as I understand, <code>SFSafariViewController</code>, <code>WKWebView</code> and the dated <code>UIWebView</code>. Which of these allows what I want to achieve?</p>