[toomanythings2]

The only developers who make sites that work just in Chrome or Safari are rank amateurs. No professional would do such a thing. Professionals understand that a web site must work for all visitors and I have never heard of any web site that would do otherwise. To me, this is only an internet rumor and not based in reality.

The only exception would be when one particular feature is needed to display one specific, unique element. Off the top of my head, I can't think of what that would be.