Earlier I was asking the question how to set up both httpexpires and cachecontrol headers
I think I kind of found the answer
<clientCache cacheControlCustom="public" httpExpires="Tue, 19 Jan 2038 03:14:07 GMT" cacheControlMaxAge="12:00:00" cacheControlMode="UseExpires" />
Now i am not receiving 500 internal error for image requests.
But now I have a new question
Looks like If I set cacheControlMode="UseExpires" it will use httpExpires as content expiratoin but if I set cacheControlMode="UseMaxAge" it will use cacheControlMaxAge as content expiration. So still not clear how to set both cacheControlMaxAge and httpExpires? Is it possible?