1654477.html - mozsearch

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<!DOCTYPE html>

<html>

<head>

<script>

function boom()

  const canvas = document.getElementById('canvas');

  const ctx = canvas.getContext('2d');

  for (let i = 0; i < 50; i++) {

    canvas.width = 20;

    ctx.fillStyle = 'green';

    ctx.fillRect(1, 1, 20, 20);

    canvas.width = 10;

    ctx.fillStyle = 'green';

    ctx.fillRect(1, 1, 10, 10);

</script>

</head>

<body onload="boom();">

<canvas id="canvas"></canvas>

</body>

</html>