| <!DOCTYPE html> | |
| <script src="/resources/testharness.js"></script> | |
| <script src="/resources/testharnessreport.js"></script> | |
| <iframe src="resources/sandbox.php?sandbox=allow-top-navigation"></iframe> | |
| <script> | |
| window.onload = () => { | |
| test(() => { | |
| assert_equals(document.getElementsByTagName("iframe")[0].contentDocument, null); | |
| }, "contentDocument should return null for sandboxed iframe"); | |
| }; | |
| </script> |