зеркало из https://github.com/mozilla/gecko-dev.git
18 строки
543 B
HTML
18 строки
543 B
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>Bug 1219985: Unsetting moz-opaque should clear the canvas even if the canvas has been created with alpha:false, and the canvas should stay opaque.</title>
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<div style="width: 200px; height: 200px; background-color: red;">
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<canvas id="c" width="200" height="200" moz-opaque="true"></canvas>
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</div>
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<script>
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var c = document.getElementById('c');
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var ctx = c.getContext('2d', { alpha: false });
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ctx.fillStyle = 'green';
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ctx.fillRect(50, 50, 100, 100);
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c.removeAttribute("moz-opaque");
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</script>
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