| <!DOCTYPE html> |
| <html class='reftest-wait'> |
| <title>Sticky elements inside fixed ancestors and iframe shouldn't account for scroll</title> |
| <link rel="match" href="position-sticky-fixed-ancestor-iframe-ref.html" /> |
| <link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" /> |
| <link rel="help" href="https://crbug.com/1019142"> |
| <meta name="assert" content="This test checks that a sticky element inside a fixed subtree and iframe doesn't scroll with the viewport "/> |
| |
| <script src="/common/reftest-wait.js"></script> |
| |
| <style> |
| body,html { |
| margin: 0; |
| width: 100%; |
| height: 100%; |
| } |
| |
| iframe { |
| margin: 10px; |
| width: 90%; |
| height: 90%; |
| border: 1px solid black; |
| } |
| |
| .spacer { |
| height: 120vh; |
| } |
| </style> |
| |
| <div class="spacer"></div> |
| <iframe src="../resources/position-sticky-fixed-ancestor-iframe-child.html"></iframe> |
| <div class="spacer"></div> |
| |
| <script> |
| const child = document.querySelector('iframe'); |
| child.scrollIntoView(); |
| window.onload = () => { |
| const childDoc = child.contentDocument; |
| function toggleFixed() { |
| childDoc.querySelector('.position-parent').classList.toggle('fixed'); |
| } |
| |
| childDoc.getElementById('button').addEventListener('click', toggleFixed); |
| |
| requestAnimationFrame(() => { |
| childDoc.scrollingElement.scrollTop = childDoc.querySelector('.long').clientHeight; |
| requestAnimationFrame(() => { |
| toggleFixed(); |
| takeScreenshot(); |
| }); |
| }); |
| }; |
| </script> |
| </html> |
