It might be worth clarifying that in its current state, Picturefill is not a polyfill of the <picture> element, but rather a div-based pattern that mimics picture in ways that are safe to use today and moving forward. Also, by using media queries, client-side solutions like Picturefill offer levels of control that can’t be mimicked on the server, where only default known values such as device screen dimension can be derived.
Scott Jehl
Some nice points here, Tim.
A note on the image loading part:
It might be worth clarifying that in its current state, Picturefill is not a polyfill of the <picture> element, but rather a div-based pattern that mimics picture in ways that are safe to use today and moving forward. Also, by using media queries, client-side solutions like Picturefill offer levels of control that can’t be mimicked on the server, where only default known values such as device screen dimension can be derived.
Thanks!