| <!doctype HTML> | |
| <link rel=author href="mailto:vmpstr@chromium.org"> | |
| <link rel=help href="https://crbug.com/1273395"> | |
| <dialog id="parentElement"> | |
| <details id="childElement" open="true" ontoggle="toggleHandler()"> | |
| <dialog id="grandchildElement"> | |
| </dialog> | |
| </details> | |
| </dialog> | |
| <script> | |
| function toggleHandler() { | |
| grandchildElement.showModal(); | |
| parentElement.showModal(); | |
| childElement.open = false; | |
| } | |
| </script> |