frame-set-too-many-frames.html | Explore in Territory

<!DOCTYPE html>
<frameset rows="30%,*" style="transform-origin: 0 0; transform: scale(0.5); background-color: red">
    <frame src="data:text/html,<body bgcolor=green>"></frame>
    <frame src="data:text/html,<body bgcolor=green>"></frame>
    <frame src="data:text/html,<body bgcolor=red>"></frame>
</frameset>

chromium/third_party/blink/web_tests/fast/frames/frame-set-too-many-frames.html