Kiet Ho
bbd62294ed
Automatic update from web-platform-tests WebKit export of https://bugs.webkit.org/show_bug.cgi?id=314778 -- wpt-commits: 1e98f48e81b20e7bf91fcdf6e0a8319558bd6254 wpt-pr: 60041
34 lines
601 B
HTML
34 lines
601 B
HTML
<!DOCTYPE html>
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<style>
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body {
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margin: 0;
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padding: 0;
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}
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#target {
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position: absolute;
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height: 40px;
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width: 40px;
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background-color: green;
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}
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</style>
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<div id="target"></div>
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<script>
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let options = {
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rootMargin: '40px 0px 0px 0px',
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threshold: [1]
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}
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let observer = new IntersectionObserver((observations) => {
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const lastObservation = observations[observations.length - 1];
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window.top.postMessage({
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isIntersecting: lastObservation.isIntersecting
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}, "*");
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}, options);
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observer.observe(document.getElementById("target"));
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</script>
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