| <!doctype html> |
| <meta charset=utf-8> |
| <title>Append iframe element to its own child document</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <iframe id=x></iframe> |
| <script> |
| test(function() { |
| var iframe = document.getElementById('x'); |
| var childWindow = iframe.contentWindow; |
| assert_equals(childWindow.parent, window); |
| childWindow.document.body.appendChild(iframe); |
| assert_equals(childWindow.parent, null); |
| assert_equals(iframe.contentWindow, null); |
| assert_equals(childWindow.document.body.firstChild, iframe); |
| }); |
| </script> |
