poornas 9199033db7 Set X-Cache and X-Cache-Lookup headers for cache (#8794)
X-Cache sets cache status of HIT if object is
served from the disk cache, or MISS otherwise.
X-Cache-Lookup is set to HIT if object was found
in the cache even if not served (for e.g. if cache
 entry was invalidated by ETag verification)
2020-01-10 20:21:13 -08:00
..