在document.domain更改后，IE中无法访问about：空白iframe [英] Can't access an about:blank iframe in IE after the document.domain changes
问题描述
有没有人知道在$ code> document.domain 的任何解决方法：空白 iframe在IE的页面上c>已经改变了？
Does anyone know of any workarounds to creating an about:blank iframe on a page in IE when the document.domain has changed?
在 document.domain 属性已被更改后，IE似乎不允许访问空/动态iframe 。
IE doesn't seem to allow access to empty/dynamic iframes after the document.domain property has been altered.
例如，假设您正在动态创建一个iframe，然后在其中注入一些html：
For example, imagine you're dynamically creating an iframe and then injecting some html into it:
// Somewhere else, some 3rd party code changes the domain
// from something.foo.com to foo.com
document.domain = 'jshell.net';
var iframe = document.createElement('iframe');
document.body.appendChild(iframe);
// In IE, we can't access the iframe's contentWindow! Access is denied.
iframe.contentWindow.document.body.style.backgroundColor = 'red';
以下是jsfiddle的现场示例： http://jsfiddle.net/XHkUT/
Here's a live example on jsfiddle: http://jsfiddle.net/XHkUT/
您会注意到它在FF / Webkit中正常工作，但不是IE。这是特别令人沮丧的，因为这影响了
You'll notice it works fine in FF/Webkit, but not IE. It's particularly frustrating because this affects iframes created after the document.domain property has changed (as in the example above).
IE规则似乎是如果您在更改 document.domain 之后创建一个动态/空iframe，您不能访问其DOM。
The IE rule seems to be "if you create a dynamic/empty iframe after you change document.domain, you can't access its DOM."
将iframe src 设置为：空白 javascript：void（0）或 javascript：已成功/ p>
Setting the iframe src to about:blank javascript:void(0) or javascript:"" has been unsuccessful.
推荐答案
您是否乐意将iframe的域名更改为？以下作品（对我来说）在IE7,9中
Are you happy to change the domain of the iframe to? The following works (for me) in IE7,9
document.domain = 'jshell.net';
var iframe = document.createElement('iframe');
document.body.appendChild(iframe);
iframe.src = "javascript:document.write('<script>document.domain=\"jshell.net\"</script>')";
// Now write some content to the iframe
iframe.contentWindow.document.write('<html><body><p>Hello world</p></body></html>');
编辑：如果这是页面上的内联脚本，则需要拆分结束< / script> 标记。请参阅为什么分拆脚本标记
If this is inline script on a page then you need to split the closing </script> tag up. See why-split-the-script-tag
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