chrome Pop-up blocker when to re-check after allowing page
<p>I've having app which sometimes open the popup blocker, when the user run the application chrome have some flag in the url box (right side) which tell to the user that the <strong>pop-up is blocked</strong> ,in this case I give to the user <strong>in addition new warning message</strong> like "please pay attention the page was blocked please enable it..." </p>

<p>My question is when and in which term I <strong>need to do this check again</strong> ,assume the <strong>user allow the new App page</strong> </p>

<blockquote>
  <ol>
  <li>if user close and open the browser does he need to enable this pop-up again ?</li>
  <li><p>I know that if the user will run it in diffrent chrome versions (like canary or beta) he probably need to confirm this page again but
  my question in which cases the pop-up will show again to the <strong>same
  user</strong>(which confirm it before)</p></li>
  <li><p>In which case <strong>after allowing</strong> the App to run the  pop-up blocker will block it again?</p></li>
  </ol>
</blockquote>

<p>Btw I saw that in my company they add the exception to the popup blocker 
with some automated process, how it can be? there is a code that can do that?(strange...)</p>

<p>I see it when I click on setting search for pop -> privacy -> content settings -> manage exception and then I see 
<a href="https://i.stack.imgur.com/Alzv1.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Alzv1.jpg" alt="enter image description here"></a></p>