[whatwg] Proposal: add attributes etags & last-modified to <link> element.
julian.reschke at gmx.de
Sun Sep 19 12:19:24 PDT 2010
On 19.09.2010 20:47, Robert O'Callahan wrote:
> 2010/9/19 Julian Reschke <julian.reschke at gmx.de
> <mailto:julian.reschke at gmx.de>>
> On 15.09.2010 19:45, Gavin Peters (蓋文彼德斯) wrote:
> Hi, I'm working on link tags inside of chrome. We're now
> with an optimization that uses link tags and headers to avoid round
> trips for cache validation in many cases.
> Clarifying: essentially that's a workaround for resources for which
> the actual cache information returned by HTTP GET isn't accurate,
> right? Which of course leads to the question: if the maintainers of
> a site can't get their cache information right, what makes you think
> they can get their HTML right instead?
> No, it's a performance optimization. I presume that if the link
> attributes indicate that the browser's cached resource is valid, the
> browser does not issue a network request to validate the resource.
So it's a workaround that causes a performance optimization. It wouldn't
be necessary if the linked resource would have the right caching
information in the first place.
So again: what makes you think they can get their HTML right instead?
Best regards, Julian
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