зеркало из https://github.com/mozilla/gecko-dev.git
24 строки
546 B
HTML
24 строки
546 B
HTML
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<html>
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<head>
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<script>
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function start() {
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const xhr = new XMLHttpRequest();
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const observer = new ResizeObserver(entries => {
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xhr.open('GET', '', false);
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xhr.send();
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typeof entries[0].borderBoxSize;
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typeof entries[0].contentRect;
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typeof entries[0].borderBoxSize;
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})
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observer.observe(document.getElementById('list'), {});
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window.close();
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}
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document.addEventListener('DOMContentLoaded', start);
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</script>
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</head>
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<body>
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<li class="" id="list">
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</body>
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</html>
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