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Editorial Team
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Asked: 2026-05-21T20:37:43+00:00

I have the following code: <html> <head> </head> <body> <script type=text/javascript> var frame =

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I have the following code:

<html>
<head>
</head>
<body>
    <script type="text/javascript">
        var frame = document.createElement('iframe');
        frame.id = 'myFrame';
        document.getElementsByTagName('body')[0].appendChild(frame);
        var context = frame.contentWindow.document;
        context.body.innerHTML = 'testing';
    </script>
</body>
</html>

This creates a simple iframe containing my text: ‘testing’.

This works perfectly in Chrome, but Firefox and IE are rendering an empty iframe.

Any idea what I’m doing wrong?

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1 Answer

  1. Editorial Team

    You can do something like this:

    var frame = document.createElement('iframe');
frame.id = 'myFrame';
document.getElementsByTagName('body')[0].appendChild(frame);

frame = (frame.contentWindow) ? frame.contentWindow : (frame.contentDocument.document) ? frame.contentDocument.document : frame.contentDocument;
frame.document.open();
frame.document.write('testing');
frame.document.close();

    Javascript is interpreted differently by all browsers, so it’s just a matter of using the common-approach. This should work across all browsers.

    Give it a try.

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