Re: I-D Action: draft-ietf-httpbis-cache-08.txt

On 14/06/20 1:32 am, Ken Murchison wrote:
> All,
> 
> I'm trying to verify my understanding of must-revalidate vs unqualified
> no-cache in responses per the text in Sections 5.2.2.1 and 5.2.2.3
> respectively.  Other than the point regarding the Authorization header
> field and must-revalidate, is the difference that unqualified no-cache
> requires validation for every request and must-revalidate only requires
> validation after the response has become stale?
> 

The specification difference is exactly that yes.

In practice implementations (particularly older RFC2616 based ones) may
treat "no-cache" as if it were "no-store" and "must-revalidate" as if it
were unqualified "no-cache".

Amos

Received on Sunday, 14 June 2020 01:38:28 UTC