Building a Faster Lightbox

engineering:

Tumblr’s new Photoset feature was hinged on being able to quickly display high-res images in an interactive lightbox slideshow. You can check out an example with my dog.

After solidifying the design, we spent a couple days doing everything we could to improve the real and perceived responsiveness. Here’s what we learned along the way.

I like photos. You like photos. David explains how we make it work, fast!

And as always: Serve those images from CDN!

Source: engineering

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