On Mon, Apr 22, 2013 at 8:27 PM, Brion Vibber <br...@pobox.com> wrote:

> Another possibility is to preferably load images on view/section expansion
> via JavaScript, which can potentially give you a chance to query the format
> compatibility in client JS and avoid any HTTP-level negotiation. (And also
> doesn't load any images until you need them.) Things to think about...

format compatibility check is usually done with these few lines:
http://queryj.wordpress.com/2012/06/11/detecting-webp-support/

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