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Editorial Team
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Asked: 2026-05-25T13:16:03+00:00

Does anyone have a good technical reason why the following code runs fine in

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Does anyone have a good technical reason why the following code runs fine in WebKit based browsers (Chrome/Safari) but causes FF to hang and IE never writes anything out? Note that if i use writeOutDirect() which does not use setTimeout() then it works fine (but has other side effects as i discuss at http://blog.livz.org/post/More-responsive-UI-with-setTimeout-on-WebKit.aspx .

<html>
<head>
    <script>
        function doIteration() {
            for (i=0;i<10;i++) {
                writeOut(i);
                //writeOutDirect(i);                
            }

        }

        function writeOut(i) {
            setTimeout(function () {
                document.write(i+'<br/>');
            },0);
        }

        function writeOutDirect(i) {
            document.write(i+'<br/>');
        }
    </script>
</head>
<body onload="doIteration()">

</body>

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1 Answer

  1. Editorial Team

    The Gecko behavior here is correct. The WebKit behavior is a bug. See https://bugs.webkit.org/show_bug.cgi?id=65407

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