resp.stale
BOOL, can be read and set
, but not unset
.
Available inall subroutines.
Whether or not the response is a stale cache hit.
Stale hits are caused by asynchronous revalidation, backend failure, or an explicit return(deliver_stale)
.
To learn more, refer to staleness and revalidation, resp.stale.is_error
, and resp.stale.is_revalidating
.
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