atlrus - 5:31 am on Jun 19, 2013 (gmt 0)
Besides, why is a site search pointing to an empty page?
I think you are confusing search with http.
404 has nothing to do with search, which is why my gears are grinding reading this. 404 is part of a network layer protocol and Google should stay away and not try to muscle itself into defining things like that on its own merit.