| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1928724"> | |
| <style> | |
| *:only-child { | |
| contain: size layout paint; | |
| } | |
| </style> | |
| <script> | |
| document.addEventListener("DOMContentLoaded", () => { | |
| a.getBoundingClientRect(); | |
| a.appendChild(c); | |
| b.scrollBy(); | |
| }) | |
| </script> | |
| <body> | |
| <svg> | |
| <animateMotion id="b"> | |
| </animateMotion> | |
| <foreignObject id="a"> | |
| <article> | |
| <data id="c"> |