| <!DOCTYPE html> |
| <title>moveBefore should not close a modal dialog</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <section id="old_parent"> |
| <dialog id="dialog"> |
| </dialog> |
| </section> |
| <section id="new_parent"> |
| </section> |
| <script> |
| promise_test(async t => { |
| const dialog = document.querySelector("#dialog"); |
| dialog.showModal(); |
| document.querySelector("#new_parent").moveBefore(dialog, null); |
| assert_equals(document.elementFromPoint(0, 0), dialog); |
| }, "when reparenting a modal dialog, the dialog should stay modal"); |
| </script> |
