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<!DOCTYPE html>
<!-- This frame is used by image-loading-lazy-in-cross-origin-iframe-002.sub.html -->
<img id="img" loading="lazy">
<script>
const img = document.querySelector('#img');
// Prevent the list of available images check from loading the image non-lazily.
img.src = "image.png?image-loading-lazy-in-viewport-" + Math.random() + "-" + Date.now();
img.addEventListener("load", () => {
parent.postMessage("image_loaded", "*");
});
window.addEventListener("load", () => {
parent.postMessage("window_loaded", "*");
});
</script>
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