| <!-- | |
| @BLINK-ALLOW:expanded* | |
| @WAIT-FOR:PopoverIsExpanded | |
| --> | |
| <!DOCTYPE html> | |
| <button id=toggle popovertarget="will-expand">Will expand</button> | |
| <div popover id="will-expand">PopoverIsExpanded</div> | |
| <script> | |
| document.addEventListener('DOMContentLoaded', () => { | |
| document.getElementById('toggle').click(); | |
| }); | |
| </script> |