问题
I've got a page that has an iframe. Every time the page loads, iframe gets unique id and name assigned to it. I can get the iframe name within loaded iframe like so:
alert(parent.window.frames[window.name].name);
But when i try to get the id value:
alert(parent.window.frames[window.name].id);
I get undefined?
Is it possible to get the id attribute of the iframe within loaded page?
http://jsfiddle.net/cqFtB/
<iframe id="lyygi8stwZSANUEh" src="http://example.com" name="zma82vRVe18xbAqW" title="Awesome Iframe">
example.com:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Awesome Iframe</title>
</head>
<body>
<script type="text/javascript">
alert(parent.window.frames[window.name].name);
</script>
</body>
</html>
回答1:
Try window.frameElement.id in the iframe.
回答2:
In the iframe this is working for me. But only if the iframe and the parent share the same domain:
this.frameElement.attributes.id
回答3:
You have to insert the name of the iframe:
alert(parent.window.frames['zma82vRVe18xbAqW'].name);
来源：https://stackoverflow.com/questions/5864505/javascript-get-iframe-id-within-loaded-page