These requests are typically loaded by the same user repeatedly as they
switch tabs on the search page. Considering that Elasticsearch indexing
is only updated every 1-2 minutes anyway the 1 minute browser side cache
shouldn't really be noticeable to users except for loading counts
faster.

This is also using a `private` cache (default for `expires_in`) so that
it is not cached by intermediate proxies. This is important since each
user's permissions is considered in a search.