title: How to get the references of all opened child windows after parent window reload
body: <p>I am storing the reference of child window in variable as below.</p>
  
  <pre><code>var mychildWindow = window.open(url,name,params);
  </code></pre>
  
  <p>When the parent window refresh/reload how to get the child window instance??</p>
  
  <p>Any work around or like Facebook did for pop out chat.</p>
  
  <p>Thanks in advance</p>