| <!DOCTYPE html> | |
| <script src="../../resources/testharness.js"></script> | |
| <script src="../../resources/testharnessreport.js"></script> | |
| <div id="dialog"> | |
| <div id="item"></div> | |
| </div> | |
| <script> | |
| test(() => { | |
| const itemRoot = item.attachShadow({mode: 'open'}); | |
| const dialogRoot = dialog.attachShadow({mode: 'open'}); | |
| dialogRoot.innerHTML = '<dialog><slot></slot></dialog>'; | |
| dialog.offsetTop; | |
| dialogRoot.firstChild.showModal(); | |
| }, "showModal on dialog inside shadow should not crash."); | |
| </script> |