问题
I have an iFrame, content of which is inside another iFrame. I want to get the inside iFrame's src content. How can I do this using javascript?
回答1:
The outer page:
<html>
<body>
<iframe id="ifr1" src="page1.htm"></iframe>
<iframe id="ifr2" src="http://www.google.com"></iframe>
</body>
</html>
page1.htm:
<html>
<body>
<script type="text/javascript">
document.write(parent.document.getElementById('ifr2').src);
</script>
</body>
</html>
回答2:
iframeInstance.contentWindow.document - this document loaded from SRC url. and vice verse - to get from inner document to parent use: parent.document
回答3:
<body>
<div id="f1" style="padding-left:5px;">..</div>
<script type="text/javascript">
document.getElementById("f1").innerHTML = '<iframe src="frame.php or html" width="200" height="100" frameborder="0" scrolling="no"></iframe>';
</script>
</body>
</html>
I am not so expert but this for your script hints, you can modify and test for your pages.
来源：https://stackoverflow.com/questions/1264569/how-to-get-iframe-src-content-using-javascript