<script>if(window.opener){opener.location='https://mathiasbynens.github.io/rel-noopener/#hax';// Just `opener.location.hash = '#hax'` only works on the same origin.}else{document.querySelector('h1').innerHTML='The previous tab is safe and intact. <code>window.opener</code> was <code>null</code>; mischief <em>not</em> managed!';}</script>
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