Add "X-cache: PASS" support in cacheHits module #166
I don't know if this PR could have some interest for you, but in case ...
This PR add X-cache PASS metrics.
In our Varnish, we have HIT, MISS and PASS.
PASS tell us there is a rule which exclude cache on this request, and tell us which rules.
And PASS request, is a thing that we have to look, because it means that every hit go to the backend !