[webkit-gtk] dns prefetching knob

Todd T. Fries todd at fries.net
Wed Mar 9 08:48:31 PST 2011


Penned by Dan Winship on 20110309  8:10.16, we have:
| On 03/09/2011 07:55 AM, Marco Peereboom wrote:
| > For some reason
| > people are still attached to this relic of the modem era.  DNS prefetch
| > is optional in the HTTP spec and the time has come to admit that it no
| > longer serves a purpose.  Back in the day when modems were king and DNS
| > lookups were expensive you could save some time when a user clicked on a
| > link.  Times have changes and the web has evolved.
| 
| Prefetch isn't mentioned in the HTTP spec at all. And I don't think
| anyone was doing it back in the modem age. AFAIK, Google started doing
| it with Chrome, and other people followed.
| 
| It *does* help in some cases. Lots of sites have lame slow DNS servers
| (and lots of ISPs have lame slow recursive resolvers). We just don't
| want to try to pre-resolve every single link on the page.
| 
| -- Dan

Dan,

Would you at least agree that it causes no harm for us to be able to
disable the option if we want to see for our selves?

What are the downsides of adding this diff?

Thanks,
-- 
Todd Fries .. todd at fries.net

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