JS error I just noticed

[foxfirefey]

I was bopping about the site with Firebug on and happened to notice this error come up on the console:

Permission denied for http://embedded.dreamwidth.net to call method Location.toString on http://foxfirefey.dreamwidth.org.

I don't have the focus at the moment to drill down and see if it's already a bug or connect it to a real problem, so I'm posting here so I don't forget (or somebody else can hunt it down!)

Edit: exor674 tells me this is whatever is being embedded trying to break out of its sandbox! Bad embed, no cookies for you.