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Re: Pre-fetch rough draft

From: Florian Bösch <pyalot@gmail.com>
Date: Tue, 30 Oct 2012 11:03:12 +0100
Message-ID: <CAOK8ODiQJfGcm-uY6n8_iZoLH5DshSz3Tqj8XKy-TOjydKOAhA@mail.gmail.com>
To: Julian Reschke <julian.reschke@gmx.de>
Cc: Charles McCathieNevile <chaals@myopera.com>, public-webapps WG <public-webapps@w3.org>
It's also a little unclear to me how prefetch improves the html
manifest or how they compare. It seems as if prefetch does pretty much
the same as the manifest except that it distributes fetching of the
actual resources out over time that the user might not be visiting a
site. Wouldn't it make more sense to tack this onto the html manifest?

On Tue, Oct 30, 2012 at 10:52 AM, Julian Reschke <julian.reschke@gmx.de> wrote:
> On 2012-10-30 10:22, Charles McCathieNevile wrote:
>>
>> Hi,
>>
>> I mentioned this and it's somethign we are working on.
>>
>> Basic idea: site provides list of resources that it uses and can be
>> cached for general improvements on the whole site. (We're seeing
>> load-time improvement from 50% - 300% in our testing. We are using it on
>> sites - mail.yandex.ru/prefetch.txt has an example).
>>
>> The draft "spec" here is still very rough, but it shows what we've
>> implemented and some of what we think it is good for.
>>
>> This is meant as input to the appcache/packaging/etc discussion, and may
>> or may not be something this group takes on.
>>
>> cheers
>
>
> I'm not a caching expert, but adding yet another mechanism (in addition to
> HTTP caching and the HTML stuff) should be done with a lot of care.
>
> Nits: *if* you want to add yet another manifest file, please consider
> respecting <http://tools.ietf.org/html/rfc5785>.
>
> Also: I would try to remove hacks / special cases. If there's a need to
> declare resources that should be fetched without cookies, then we should
> have a generic mechanism for that, not something special-cased for a
> specific URI.
>
> Best regards, Julian
>
>
>
Received on Tuesday, 30 October 2012 10:03:40 GMT

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