зеркало из https://github.com/mozilla/gecko-dev.git
17 строки
305 B
HTML
17 строки
305 B
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<script type="application/javascript">
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var target = document.createElement("div");
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target.foo = 'bar';
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var observer = new IntersectionObserver(function () { });
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observer.observe(target);
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observer.unobserve(target);
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observer = null;
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target = null;
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</script>
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</head>
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</html>
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