LayoutTests/http/tests/security/denied-base-url-javascript-url.html

<!DOCTYPE html>
<head>
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
  <script>
    if (window.internals && internals.settings)
      internals.settings.setShouldRestrictBaseURLSchemes(true);
  </script>
  <base href="javascript:// This is JavaScript">
</head>
<body>
  <script>
    async_test(t => {
      var base = document.querySelector('base');
      var img = new Image();
      img.onload = t.step_func_done(_ => {
        assert_equals(img.naturalWidth, 76, "Image loaded correctly.");
        assert_equals(img.src, "http://127.0.0.1:8000/security/resources/abe.png");
      });
      img.onerror = t.unreached_func("Image should have loaded.");
      img.src = "/security/resources/abe.png";
    }, "'javascript:' is an invalid base URL.");
  </script>
</body>