feature request cache refresh

[Poul-Henning Kamp]

In message <4B56D2B1.9090502 at gmail.com>, Rob S writes:

>Our experience of grace is that the first client who requests content 
>after expiry is held up talking to the backend, whilst other subsequent 
>clients get delivered the graced stale content.  But, if that's not 
>intended, perhaps our config isn't quite right.

That is indeed the correct behaviour.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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