Commit d68e8966 authored by Nils Goroll's avatar Nils Goroll Committed by Lasse Karstensen

document keep

parent 00779649
......@@ -499,6 +499,13 @@ sp_variables = [
'DURATION',
( 'backend_response', 'backend_error'),
( 'backend_response', 'backend_error'), """
Set to a period to enable conditional backend requests.
The keep time is cache lifetime in addition to the ttl.
Objects with ttl expired but with keep time left may be used
to issue conditional (If-Modified-Since / If-None-Match)
requests to the backend to refresh them.
"""
),
('beresp.backend.name',
......
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