On Sat, 12 May 2012, Boris Zbarsky wrote:
On 5/12/12 9:28 AM, Mathew Marquis wrote:
While that information may be available at the time the img tag is parsed,
I don’t believe it will be available at the time of prefetching
Which information?
At least in Gecko, prefetching happens "when the tag is parsed".
So in fact in Gecko the srcset approach would be much more amenable to
prefetching than the <picture> approach.
Yes, I should have mentioned that is also true in the various types of
optimistic resource loading/parsing that Opera does e.g. the delayed
script execution mode and the speculative tokenisation feature.
