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javascript postMessage not working

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南笙
南笙 2021-02-03 23:19

I don\'t know what to do. I tried several sample codes from different sources, I tried them in different browsers (from Chrome 9 to FF 4), and still nothing seems to be working

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4条回答
  • 萌比男神i
    2021-02-03 23:54

    The second parameter of your postMessage must be an url like http://localhost

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  • 刺人心
    2021-02-04 00:01

    you can also send the message to any window use top.postMessage('hello', "*");

    Html 1:

    <iframe src="IFRAME_URL"></iframe>
<script>
window.addEventListener( "message",
  function (e) { 
        alert(e.data);
  },
  false);
</script>

    html 2:

    <html>
<head></head>
<body>
    <script>
        top.postMessage('hello', '*');
    </script>
</body>
    0 讨论(0)
  • 攒了一身酷
    2021-02-04 00:01

    I'm not sure of the security concerns, but typically, I just grab the parent window location like this:

    var url = (window.location != window.parent.location) ? document.referrer: document.location;
top.postMessage('message', url);
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  • 清酒与你
    2021-02-04 00:19

    If you are not dealing with different origins, entering location.origin as the targetOrigin will work.

    top.postMessage('hello', location.origin);
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