testing/web-platform/tests/document-policy/experimental-features/resources/document-policy-image.html


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<!DOCTYPE html>
<body>
<script>
window.addEventListener('load', function() {
  var img = document.createElement('IMG');
  img.setAttribute("src", "/document-policy/experimental-features/resources/image.jpg");
  img.addEventListener('load', function() {
    parent.postMessage({width: img.width, height: img.height}, '*');
  });
  document.body.appendChild(img);
});
</script>
</body>