Rail Lover ION 2023

const embeddedObserver = new IntersectionObserver((entries, embeddedObserver) => { entries.forEach((entry) => { if(entry.isIntersecting) { entry.target.src = entry.target.getAttribute("data-src") embeddedObserver.unobserve(entry.target); } }); }); document.querySelectorAll(".embed-observe").forEach((elem) => { embeddedObserver.observe(elem); });