A Deep Dive into Native Lazy-Loading for Images and Frames
CSS - Tricks
MAY 15, 2019
Well, that’s about to change when lazy-loading will be available natively in HTML as a new loading attribute… at least in Chrome which will hopefully lead to wider adoption. Make sure your servers support the HTTP Range: 0-2047 header and respond with status code 206 (Partial Content) to prevent them from delivering the full image twice.
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