Read strategy used by CachedRestBackend for GET requests.
GET
cache-first
network-first
stale-while-revalidate
Read strategy used by CachedRestBackend for
GETrequests.cache-first: return cached data when present, otherwise fetch network.network-first: fetch network first, falling back to stale cache on error.stale-while-revalidate: return cache immediately and refresh in the background.