13 lines
239 B
HTML
13 lines
239 B
HTML
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<!doctype html>
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<html>
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<head>
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<title>Bug 1239889</title>
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</head>
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<body>
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</body>
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<script>
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var div = document.createElement('div');
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var effect = new KeyframeEffectReadOnly(div, { opacity: [0, 1] });
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</script>
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</html>
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