Re: What is an "up to date" version?

Quoting Martynas Jusevičius (2017-10-29 10:20:43)
> ETag would still need a request to check If-Modified-Since every time,
> which is slow.
> 
> OK, I could use Cache-Control: max-age and Expires as clues. But what about
> servers that do not send them?
> On Sun, 29 Oct 2017 at 08.41, Story H.J. <H.J.Story@soton.ac.uk> wrote:

Servers not declaring a lifespan of resources served cannot reliably be 
cached.


 - Jonas

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Received on Sunday, 29 October 2017 11:25:35 UTC