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i am using this code to open a popup in the center of the screen 

  function popupwindow(url, title, w, h) {
      wLeft = window.screenLeft ? window.screenLeft : window.screenX;
      wTop = window.screenTop ? window.screenTop : window.screenY;

      var left = wLeft + (window.innerWidth / 2) - (w / 2);
      var top = wTop + (window.innerHeight / 2) - (h / 2);
      return window.open(url, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=' + w + ', height=' + h + ', top=' + top + ', left=' + left + ', screenX=' + left + ', screenY=' + top);
  }

All works fine in Firefox, IE and Safari but in Chrome the popup shows up randomly. How can i make this works also in Chrome?

i am using this code to open a popup in the center of the screen 

  function popupwindow(url, title, w, h) {
      wLeft = window.screenLeft ? window.screenLeft : window.screenX;
      wTop = window.screenTop ? window.screenTop : window.screenY;

      var left = wLeft + (window.innerWidth / 2) - (w / 2);
      var top = wTop + (window.innerHeight / 2) - (h / 2);
      return window.open(url, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=' + w + ', height=' + h + ', top=' + top + ', left=' + left + ', screenX=' + left + ', screenY=' + top);
  }

All works fine in Firefox, IE and Safari but in Chrome the popup shows up randomly. How can i make this works also in Chrome?

  • javascript
  • google-chrome
  • popupwindow
Share Improve this question asked Oct 4, 2013 at 10:50 Alberto PellizzonAlberto Pellizzon 6091 gold badge8 silver badges23 bronze badges
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2 Answers 2

Reset to default 2

I see the below code is working fine.

<script>
    function popupCenter(url, title, w, h) {
      var left = (screen.width/2)-(w/2);
      var top = (screen.height/2)-(h/2);
      return window.open(url, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width='+w+', height='+h+', top='+top+', left='+left);
    }
</script>

The Link Sample:

<a onclick="popupCenter('http://www.nigraphic.', 'myPop1',450,450);" href="javascript:void(0);">CLICK TO OPEN POPUP</a>

You can see details here

This is happening because your zoom level is not 100% in Chrome. If the zoom level is off, it changes how it gets the coordinates. In other browser, at least IE, the zoom factor does not change where the window is opened. So correct it by checking the zoom, and that will fix your problem using the given function you provided earlier while in Chrome.

also, here is a good post about checking browser zoom levels: https://stackoverflow./a/5078596/2762516

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