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<!DOCTYPE html>
<meta charset="utf-8">
<title>CanvasRenderingContext 2D with alpha=flase context creation parameter is initialized with solid black.</title>
<p>Test passes if a 100x100 black square is displayed below.</p>
<canvas id="c" width=100 height=100></canvas>
<script>
const ctx = document.getElementById("c").getContext("2d");
ctx.fillStyle = 'black';
ctx.fillRect(-1, -1, 102, 102);
</script>