On Wed, 20 Nov 2013 22:27:52 +0100, Tab Atkins Jr. <jackalm...@gmail.com>
wrote:
We don't need to actually limit the MQs which are allowed in
<picture>. The preloader is just an optimization in the first place;
we *want* the image to be preloaded, but if it isn't, the image will
still work, just slower. We can provide a note about which types of
MQs are likely to be recognized by the preloader. Unrecognized MQs
can just cause the preloader to ignore that <source>, and if that
means an incorrect source is selected, that's just a wasted download,
Or maybe instead it should ignore the entire <picture> if it is unable to
evaluate a MQ, to avoid the wasted download.
but back on the main thread, the source selection algorithm will pick
the right picture a little bit later.
--
Simon Pieters
Opera Software
