| <!DOCTYPE html> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| |
| <template> |
| <custom-dialog></custom-dialog> |
| </template> |
| <div id=shadow></div> |
| <iframe id=sibling></iframe> |
| |
| <script> |
| async_test(function(test) { |
| customElements.define('custom-dialog',class extends HTMLElement { |
| constructor() { |
| super(); |
| this.attachShadow({mode: 'open'}).innerHTML = '<dialog></dialog>'; |
| } |
| show() { |
| this.shadowRoot.querySelector('dialog').showModal(); |
| } |
| }); |
| |
| onload = test.step_func(() => { |
| const template = document.querySelector('template'); |
| const content = document.importNode(template.content, true); |
| const dialog = content.querySelector('custom-dialog'); |
| document.querySelector('div').appendChild(dialog); |
| dialog.show(); |
| test.done(); |
| }); |
| }, 'Shadow DOM <dialog>.showModal() on a page with an <iframe> should not crash.'); |
| </script> |
