chromium/third_party/blink/web_tests/external/wpt/content-security-policy/img-src/icon-blocked.sub.html

<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="Content-Security-Policy" content="img-src 'none'; script-src 'self' 'unsafe-inline'; connect-src 'self';">
  <script src='/resources/testharness.js'></script>
  <script src='/resources/testharnessreport.js'></script>
</head>
<body>
<p>Use callbacks to show that favicons are not loaded in violation of CSP when link tags are dynamically added to the page.</p>
  <script>
    var t = async_test("Test that image does not load");
    var t_spv = async_test("Test that spv event is fired");
    window.addEventListener("securitypolicyviolation", t_spv.step_func_done(function(e) {
      assert_equals(e.violatedDirective, 'img-src');
      assert_true(e.blockedURI.endsWith('/support/fail.png'));
    }));

    function createLink(rel, src) {
        var link = document.createElement('link');
        link.rel = rel;
        link.href = src;
        link.onerror = t.done();
        link.onload = t.unreached_func('The image should not have loaded');
        document.head.appendChild(link);
    }
    window.addEventListener('DOMContentLoaded', function() {
        createLink('icon', '../support/fail.png');
    });

  </script>
</body>

</html>