745699-1.html - mozsearch

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<!DOCTYPE html>

<html>

<head>

<style>

@font-face {

  font-family: "z";

  src: url(invalid);

</style>

<script>

function boom()

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

  ctx.font = "10px serif";

  document.querySelector("style").appendChild(document.createTextNode(" "));

  ctx.measureText("123");

</script>

</head>

<body onload="boom();">

<canvas width="100" height="100"></canvas>

</body>

</html>