[whatwg] Implementation complexity with elements vs an attribute (responsive images)
jgraham at opera.com
Sat May 12 07:36:11 PDT 2012
On Sat, 12 May 2012, 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
> — I’m happy to research this further and report back with citations.
I am very confused about what you are claiming here. I have difficulty
imagining any scheme that would make prefetching work worse with an
attribute than with multiple elements. As Simon says there is a lot more
that can go wrong in the multiple-element case because a single attribute
can be processed atomically, but multiple elements can have all sorts of
other junk between them that makes naieve processing (of a type likely to
be used when prefetching) more likely to go wrong e.g.
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