Re: #227: HEAD and Caches

On 13/02/2012 5:45 p.m., Mark Nottingham wrote:
> Proposal --
>
> Old:
>
>    The response to a HEAD request is cacheable and MAY be used to satisfy a
>    subsequent HEAD request; see [Part6]. It also MAY be used to update a
>    previously cached representation from that resource; if the new field values
>    indicate that the cached representation differs from the current
>    representation (as would be indicated by a change in Content-Length, ETag or
>    Last-Modified), then the cache MUST treat the cache entry as stale.
>
> New:
>
> The response to a HEAD request is cacheable; it MAY be used to satisfy
> subsequent HEAD requests.
>
> If the Content-Length, ETag or Last-Modified value of a HEAD response differs
> from that in the selected GET response (as per [ref to p6 2.7]), the cache
> MUST consider that selected response to be stale.
>
>
>

+1.

AYJ

Received on Monday, 13 February 2012 13:32:27 UTC