[jon_wu]

Awesome! With that + HTTP/2 server push, we'll really be flying.

We already started to proxy our S3 / CloudFront assets through our load balancer so they can be cached and served through the SPDY (now HTTP/2) CloudFlare connection. However, since we're using imgix to serve different images by device, we can't allow CloudFlare to cache.

I've set up some tests to proxy Fastly through CloudFlare and my initial tests are inconclusive as to whether the crazy extra hop is worth it. It seems that if we have tons of images, it probably will be faster, but most of our pages only load about 6 images above the fold and lazy load everything else, so that might be why the difference is negligible. I'll have to test on a page where more images download concurrently to see if 1 extra hop to get SPDY and HTTP/2 is worth it.