AliExpress: lazy-load images
Forces lazy loading on images to save bandwidth on long listing pages full of photos.
Code to copy
// Force lazy loading on images to save bandwidth on long listing pages
function lazify() {
document.querySelectorAll('img:not([data-jz-lazy])').forEach(function (img) {
img.setAttribute('loading', 'lazy');
img.setAttribute('decoding', 'async');
img.dataset.jzLazy = '1';
});
}
lazify();
const obs = new MutationObserver(lazify);
obs.observe(document.documentElement, { childList: true, subtree: true });How to use this example
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- Paste the code into the rule's JavaScript panel and save — it runs on every page visit.
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