Unsafe JavaScript attempt to access frame with URL

From a child document of different origin you are not allowed access to the top window's location.hash property, but you are allowed to set the location property itself.

This means that given that the top windows location is http://example.com/page/, instead of doing

parent.location.hash = "#foobar";

you do need to know the parents location and do

parent.location = "http://example.com/page/#foobar";

Since the resource is not navigated this will work as expected, only changing the hash part of the url.

If you are using this for cross-domain communication, then I would recommend using easyXDM instead.

Crossframe-Scripting is not possible when the two frames have different domains -> Security.

See this: http://javascript.about.com/od/reference/a/frame3.htm

Now to answer your question: there is no solution or work around, you simply should check your website-design why there must be two frames from different domains that changes the url of the other one.

I was getting the same error message when I tried to change the domain for iframe.src.

For me, the answer was to change the iframe.src to a url on the same domain, but which was actually an html re-direct page to the desired domain. The other domain then showed up in my iframe without any errors.

Worked like a charm.:)