| <!DOCTYPE html> | |
| <!-- This test passes if it does not crash. --> | |
| <iframe id="frame"></iframe> | |
| <script> | |
| window.onload = () => { | |
| const host = document.createElement("div"); | |
| frame.appendChild(host); | |
| frame.contentDocument.body.innerHTML = "<dialog></dialog>"; | |
| document.body.offsetTop; | |
| const root = host.attachShadow({mode: 'open'}); | |
| root.innerHTML = "<content>"; | |
| const dialog = frame.contentDocument.querySelector("dialog"); | |
| dialog.showModal(); | |
| }; | |
| </script> |