title: How to catch new window opend by window.open(url, _blank) in PhantomJS?
body: <p>I'd like to check with PhantomJS whether my script correctly opens a new window/tab on click. The open is triggerd by a js event listener and opened through <code>window.open(url, "_blank")</code>.</p>
  
  <p>How can I listen for the new window with PhantomJS? </p>