title: Using rel="noopener" in window.open()
body: <p>So I know that I can apply <code>rel="noopener</code> in an <code>a</code> tag when using <code>target="_blank"</code>. But I'm trying to pass it as an argument to <code>window.open()</code>, ie: </p>
  
  
  
  <p><code>window.open('http://cats.com', '_blank', 'rel=noopener')</code></p>
  
  <p>however it doesn't seem to be working the way that I expected, as the <code>opener</code> object still exists on the window after the user clicks on the link.</p>
  
  <p>Is there something I'm missing? Or cannot it not be done the way that I'm intending?</p>
  
  <p>I've found some great articles but they don't quite address my use case as far as I can tell.</p>
  
  <p><a href="https://developer.mozilla.org/en-US/docs/Web/API/Window/open" rel="noreferrer">https://developer.mozilla.org/en-US/docs/Web/API/Window/open</a>
  <a href="https://mathiasbynens.github.io/rel-noopener/" rel="noreferrer">https://mathiasbynens.github.io/rel-noopener/</a></p>
  
  <p>Much appreciated.</p>