title: screen.width/screen.height not updating after screen rotation
body: <p>I'm experiencing this problem on an iPhone device (iPhone 7, iOS 10, but also other iPhones too): in javascript, if I intercept the orientationchange event, inside the handler, screen.width and screen.height remain the same (as before rotation).</p>
  
  <p>Since this may depend from the viewport settings, this is how my viewport is declared in the .html file:</p>
  
  <pre><code>&lt;meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1, maximum-scale=1, user-scalable=no" /&gt;
  </code></pre>
  
  <p>Everything works fine in Chrome's simulated visualization.</p>
  
  <p>Thanks in advance for your help.</p>