Menu
Does anyone know of any workarounds to creating an about:blank iframe on a page in IE when the document.domain has changed?
IE doesn't seem to allow access to empty/dynamic iframes after the document.domain property has been altered.
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';
Here's a live example on jsfiddle: http://jsfiddle.net/XHkUT/
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).
The IE rule seems to be "if you create a dynamic/empty iframe after you change document.domain, you can't access its DOM."
Setting the iframe src to about:blank javascript:void(0) or javascript:"" has been unsuccessful.
577
Generally, web application allows script running between pages(parent and iframe pages) in the same domain based on same-origin-policy. Unfortunately it does not support scripts if different domain. The policy does not allow it.
It undermines the security protections provided by the same origin policy, and complicates the origin model in browsers, leading to interoperability problems and security bugs. Attempting to set document. domain is dangerous.
Definition and Usage. The contentDocument property returns the Document object generated by a frame or iframe element. This property can be used in the host window to access the Document object that belongs to a frame or iframe element.
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>');
Edit: If this is inline script on a page then you need to split the closing </script> tag up. See why-split-the-script-tag
115
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
