When trying to use JS to Flash communication using FABridge , FABridge doesn't find flash object.
Fix is described at http://www.timothyhuertas.com/blog/2010/11/30/fabridgejs-play-nice-with-chrome/
I'm not sure whether you need to update FABridge version or make this change in your version of FABridge. Your current latest version 1.5.1 contains flawed FABridge which doesn't find Chrome.