webgl-layout-on-out-of-band-resize-expected.html

<!DOCTYPE html>
<head>
<style>
body {
  width: 100%;
  height: 100vh;
}
canvas {
  object-fit: contain;
  width: 100%;
  height: 100%;
  display:  block;
}
</style>
</head>
<body>
<canvas></canvas>

<script>
const canvas = document.querySelector("canvas");
const gl = canvas.getContext("webgl");

canvas.setAttribute("width", "200");
canvas.setAttribute("height", "100");
gl.clearColor(0, 0, 0.5, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
</script>
</body>

chromium/third_party/blink/web_tests/fast/canvas/webgl/webgl-layout-on-out-of-band-resize-expected.html