| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <link rel=author href="mailto:masonf@chromium.org"> |
| <link rel=help href="https://open-ui.org/components/popup.research.explainer"> |
| <link rel=match href="popup-inside-display-none-ref.tentative.html"> |
| |
| No popup should be displayed here.<p> |
| |
| <div style="display:none"> |
| <div popup>This content should be hidden</div> |
| </div> |
| |
| <script> |
| const popup = document.querySelector('[popup]'); |
| popup.showPopup(); |
| if (!popup.matches(':top-layer')) |
| document.body.appendChild(document.createTextNode('FAIL')); |
| </script> |
