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 configuration.
What is the aFarkas/lazysizes GitHub project? Description: "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 configuration.". Written in JavaScript. Explain what it does, its main use cases, key features, and who would benefit from using it.
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