image-decode-in-frame.html | Explore in Territory

<!doctype HTML>

<script>
function receiveMessage(e) {
  if (e.data !== "pass") {
    document.getElementById("error").innerHTML = "iframe decode failed.";
  }
  // Though the image has been decoded, it has not painted. Wait for a frame
  // before informing the parent.
  requestAnimationFrame(function() {
    requestAnimationFrame(function() {
      testRunner.notifyDone();
    });
  });
}

if (window.testRunner) {
  testRunner.waitUntilDone();
  window.addEventListener("message", receiveMessage, false);
}
</script>

<div id="error"></div>
<iframe frameborder=0 width=200px height=200px marginwidth=0 marginheight=0
    src="http://localhost:8000/images/resources/image-decode-local.html"></iframe>

chromium/third_party/blink/web_tests/http/tests/images/image-decode-in-frame.html