Javascript/Unity communication broken on Chrome?

We are working on a webplayer Unity project that has been in development for some time, and relies heavily on Javascript for communication between the Unity object and a set of JS functions. This goes through the normal ExternallCall/SendMessage technique explained here: http://unity3d.com/support/documentation/Manual/Unity%20Web%20Player%20and%20browser%20communication.html

Since last week, this seems to no longer work on Chrome. We didn't change anything to our code; it's the same build. Firefox, IE, Safari still work fine; Chrome gets stuck at the initialization step in our game where the browser <-> unity communication happens through Javascript.

Has anyone else had this issue on Chrome, and is there a known workaround? Thank you.

Fix was posted in this thread, apparently: http://forum.unity3d.com/threads/66512-Eroor-in-browser-Chrome-on-SendMessage-method?highlight=chrome

I'm not quite sure what the problem is, but there's the solution!