Quelle test_change_crossorigin.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/dom/html/test/test_change_crossorigin.html

<!DOCTYPE HTML>
<html>

<head>
  <meta charset="utf-8">
  <title>Test for Bug 696451</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <script type="application/javascript">

  /** Test for Bug 696451 **/

  SimpleTest.waitForExplicitFinish();

  var img = new Image,
      canvas = document.createElement("canvas"),
      ctx = canvas.getContext("2d"),
      src = "http://example.com/tests/dom/html/test/image-allow-credentials.png",
      imgDone = false,
      imgNotAllowedToLoadDone = false;

  img.src = src;
  img.crossOrigin = "Anonymous";

  img.addEventListener("load", function() {
    canvas.width = img.width;
    canvas.height = img.height;
    ctx.drawImage( img, 0, 0 );
    try {
      canvas.toDataURL("image/png");
      ok(true, "Image was refetched with setting crossOrigin.");
    } catch (e) {
      ok(false, "Image was not refetched after setting crossOrigin.");
    }

    imgDone = true;
    if (imgDone && imgNotAllowedToLoadDone) {
      SimpleTest.finish();
    }
  });

  img.addEventListener("error", function (event) {
    ok(false, "Should be able to load cross origin image with proper headers.");

    imgDone = true;
    if (imgDone && imgNotAllowedToLoadDone) {
      SimpleTest.finish();
    }
  });

  var imgNotAllowedToLoad = new Image;

  imgNotAllowedToLoad.src = "http://example.com/tests/dom/html/test/image.png";

  imgNotAllowedToLoad.crossOrigin = "Anonymous";

  imgNotAllowedToLoad.addEventListener("load", function() {
      ok(false, "Image should not be allowed to load without " +
                "allow-cross-origin-access headers.");

      imgNotAllowedToLoadDone = true;
      if (imgDone && imgNotAllowedToLoadDone) {
        SimpleTest.finish();
      }
  });

  imgNotAllowedToLoad.addEventListener("error", function() {
      ok(true, "Image should not be allowed to load without " +
               "allow-cross-origin-access headers.");
      imgNotAllowedToLoadDone = true;
      if (imgDone && imgNotAllowedToLoadDone) {
        SimpleTest.finish();
      }
  });

  </script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=696451">Mozilla Bug 696451</a>
<p id="display"></p>
<div id="content" style="display: none">

</div>
<pre id="test">
</pre>
</body>
</html>

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