chromium/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/text/canvas.2d.fontStretch-ref.html

<!DOCTYPE html>
<title>Canvas test: 2d.text.fontStretch</title>
<canvas id="c" class="output"><p class="fallback">FAIL (fallback content)</p></canvas>
<script>

var canvas = document.getElementById("c");
var ctx = canvas.getContext('2d');

function draw() {
    ctx.font = '25px test';
    ctx.fillText("P", 10, 40);
}

var f = new FontFace('test', 'url(/fonts/pass.woff)');
document.fonts.add(f);

f.load().then(draw);

</script>