DeprecateLazysizes
Discourages use of the lazysizes JavaScript library for lazy loading images, iframes, and scripts.
You should avoid using third-party libraries over native browser features to avoid large JavaScript bundle sizes and slow load times. Learn more about theme performance.
This check identifies uses of the lazyload class, data-srcset and data-sizes attributes, and data-sizes="auto".
The following examples contain code snippets that either fail or pass this check.
The following example includes a lazyload class:
The following example includes a lazyload class, a data-srcset attribute, a data-sizes attribute, and data-sizes="auto":
The following example uses the native loading attribute instead of the lazysizes library:
Disabling this check
Anchor link to section titled "Disabling this check"You should disable this check only if you want to support lazy loading of images in browsers that don't support the loading="lazy" attribute.