Lack of interest WebP support


Well-known member
That has nothing to do with what I posted. However, it isn't supported on iOS (at all) or FireFox, which has quite a big market share.


Well-known member
Apparently there's a js shim that can be installed to support it in Firefox. Still doesn't mean it's ready for prime time and wide spread support. Personally, I think it's another Google idea that's not going to go anywhere.

Jeremy P

Well-known member
If you really want something like this just use ngx_pagespeed (or mod_pagespeed) and let it take care of it automatically.

For my site, avatars are served inline in webp format to Chrome and other supported browsers, while others get optimized png/jpegs.