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Editorial Team
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Asked: 2026-06-13T23:15:55+00:00

Basically I want to have an iFrame which always restricts it’s content as if

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Basically I want to have an iFrame which always restricts it’s content as if it comes from a different domain, even if the content comes from the same origin.

Is there any way to do this?

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1 Answer

  1. Editorial Team

    This will hide window.parent in the child frame/window, but not the top property.

    BUT the window.parent property is STILL accessible till the end of the onload event of the child window/frame.

    <html>
  <head>
    <style type="text/css">
      #wrapper {width:1000px;height:600px;}
    </style>
    <script type="text/javascript">
      window.onload = function() {
        var frm = document.getElementById('childFrame');
        var win = frm.contentWindow || (frm.contentDocument && frm.contentDocument.parentWindow) || (frm.document && frm.document.parentWindow);
        if (win) win.parent = null;
      }
    </script>
  </head>
  <body>
    <div id="wrapper">
      <iframe id="childFrame" src="child.html" frameborder="0" style="width:100%;height:100%;"></iframe>
    </div>
  </body>
</html>
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