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High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without co...

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I'm have a problem understanding the use of parent-fit I'm basically doing this: < script src="lazysizes.min.js">< /script> < script src="ls.object-fit.min.js">< /script> < script src="ls.parent-fit.min.js">< /script> < div style="max-width:1170px"> < div...

I noticed you don't have a website. I make a cross-platform open source website generator called Nift (https://nift.cc) and would be happy to make a website for your project using...

The code sample that's included on the [blur-up plugin page](https://github.com/aFarkas/lazysizes/tree/master/plugins/blur-up) is incomplete. `src` and `alt` attributes are missing. These things not only affect SEO but also make HTML code invalid....

I used sentry and lazysizes and I encountered the following error:. ![スクリーンショット 2019-05-14 18 44 07](https://user-images.githubusercontent.com/5121700/57688426-5a05e680-7678-11e9-89dc-5c8a94129a7c.png) The reason is that when `window.addEventListener` is set to alias as `addEventListener`, window's bind...

I need to change the images per each breakpoint. For example, for max-width: 767px: image-mobile.jpg max-width: 1024px: image-desktop.jpg I'm trying this way, but doesn't work for me: ``` ``` Should...

Hi, where can I change the offset in pixel / percentage for the loading event?

When loading `lazysizes` via `import lazySizes from 'lazysizes';` and bundling it with webpack it is executed immediately (in the browser) and I can't seem to find a way to set...

This is a fantastic tool and really positive for the performance of the web. I'd love to see this using [IntersectionObserver](https://github.com/WICG/IntersectionObserver/blob/gh-pages/explainer.md) to compute the intersection of the viewport and the...

This is a request to replace Grunt with Rollup for packaging this library. I haven't done the legwork to identify any reasons why you might want to do this --...

According to the license: > The above copyright notice and this permission notice shall be included in all > copies or substantial portions of the Software. It will be better...