On Battlenet when you use a Cache when it is reset?

I can't remember and unfortunetly i don't know where to find the cache while i'm playing a game. it would be nice if you told me where i could find it. Though more importantly is the cache deleted at the end of the map? or the beginning of the next map?

The save command doesn't work in multiplayer thats what happens.

It's reset once you make trig to reset it.

But what would happen if the player already had a cache, would its values be flushed or could you access them.