- From: Mathew Marquis <mat@matmarquis.com>
- Date: Mon, 14 May 2012 16:17:05 -0700
- To: whatwg@lists.whatwg.org
It’s worth noting that a practical polyfill may not be possible when using `img set`, for reasons detailed at length elsewhere: http://www.alistapart.com/articles/responsive-images-how-they-almost-worked-and-what-we-need/ http://www.netmagazine.com/features/state-responsive-images Long story short: attempting to write a polyfill for `img set` leaves us in the exact situation we were in while trying to solve the issue of responsive images strictly on the front-end. We would be saddling users with a redundant download—first for the original src, then for the appropriately-sized source if needed. Where the new element would be all but ignored by existing browsers, efficient polyfills become possible. In fact, two `picture` polyfills exist today: http://wiki.whatwg.org/wiki/Adaptive_images#Functional_Polyfills Thanks, Mat Marquis
Received on Monday, 14 May 2012 23:17:37 UTC