| test(() => { |
| // As the initial:about frame document reuses the origin of this document, setting document.domain |
| // from this document, resulting in a origin mutation, has no effect on these documents being able |
| // to reach each other, as they share the same "physical" origin. |
| document.body.appendChild(document.createElement('iframe')); |
| document.domain = document.domain; |
| // Ensure we can still access the child browsing context |
| assert_equals(window[0].document.body.localName, "body"); |
| }, "Initial about:blank frame and document.domain"); |
