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Asked: 2026-05-17T21:16:03+00:00

I have this HTML code: <html> <head> <script type=text/javascript> function GetDoc(x) { return x.document

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I have this HTML code:

<html>
  <head>
    <script type="text/javascript">
      function GetDoc(x)
      {
        return x.document ||
          x.contentDocument ||
          x.contentWindow.document;
      }

      function DoStuff()
      {
        var fr = document.all["myframe"];
        while(fr.ariaBusy) { }
        var doc = GetDoc(fr);
        if (doc == document)
          alert("Bad");
        else 
          alert("Good");
      }
    </script>
  </head>
  <body>
    <iframe id="myframe" src="http://example.com" width="100%" height="100%" onload="DoStuff()"></iframe>
  </body>
</html>

The problem is that I get message “Bad”. That mean that the document of iframe is not got correctly, and what is actualy returned by GetDoc function is the parent document.

I would be thankful, if you told where I do my mistake. (I want to get document hosted in IFrame.)

Thank you.

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1 Answer

  1. Editorial Team

    You should be able to access the document in the IFRAME using the following code:

        document.getElementById('myframe').contentWindow.document

    However, you will not be able to do this if the page in the frame is loaded from a different domain (such as google.com). This is because of the browser’s Same Origin Policy.

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