toDataURL-xorigin-canvas.html | Explore in Territory

<!DOCTYPE HTML>
<html>
<head>
  <script src="../../../resources/testharness.js"></script>
  <script src="../../../resources/testharnessreport.js"></script>
</head>
<body>
  <script>
    async_test((t) => {
      var img = new Image();
      // Use a cross-origin URL.
      img.src = "http://localhost:8000/resources/square.png";

      img.onload = function() {
        var canvas2d = document.createElement("canvas");
        var context2d = canvas2d.getContext("2d");
        context2d.drawImage(img, 0, 0);
        assert_throws_dom("SecurityError", () => {
          canvas2d.toDataURL();
        }, "x-origin image should prevent calls to toDataURL() in 2d canvas");

        createImageBitmap(img, 0, 0, img.width, img.height).then(function(bitmap) {
          var canvasBitmap = document.createElement("canvas");
          var contextBitmap = canvasBitmap.getContext("bitmaprenderer");
          contextBitmap.transferFromImageBitmap(bitmap);
          assert_throws_dom("SecurityError", () => {
            canvasBitmap.toDataURL();
          }, `x-origin image should prevent calls to toDataURL()
              in bitmaprenderer canvas`);
          t.done();
        });
      };
    });
  </script>
</body>
</html>
chromium/third_party/blink/web_tests/http/tests/canvas/toDataURL-xorigin-canvas.html
