For loading the larger images, immediately setting a progressive jpeg as the src and letting it load in-frame might be a better experience than showing the loading animation until it's completely loaded and swapping it in.
Progressive JPEGs can be generated in Wand using: img.format = 'pjpeg'
Did this a different way in 4cf6c2d8c1 (the already-cached thumbnail will be used as the placeholder instead so a blurry version of the image is replaced with the full-res one when it loads)
For loading the larger images, immediately setting a progressive jpeg as the
src
and letting it load in-frame might be a better experience than showing the loading animation until it's completely loaded and swapping it in.Progressive JPEGs can be generated in
Wand
using:img.format = 'pjpeg'