| <!DOCTYPE html> |
| <html class="test-wait"> |
| <title>CSS Position Test: Chrome crash for ::backdrop transitioning overlay for popover</title> |
| <link rel="help" href="https://crbug.com/1446479"> |
| <style> |
| #popover { |
| transition: overlay 60s step-end; |
| display: block; |
| } |
| #popover::backdrop { |
| background: rgba(0, 0, 0, 0.2); |
| } |
| </style> |
| <p>PASS if no crash.</p> |
| <div id="popover" popover></div> |
| <script> |
| requestAnimationFrame(() => { |
| popover.showPopover(); |
| requestAnimationFrame(() => { |
| popover.hidePopover(); |
| document.documentElement.removeAttribute("class"); |
| }); |
| }); |
| </script> |
