chromium/third_party/blink/web_tests/svg/animations/resources/viewspec-animated-viewbox.svg

<svg xmlns="http://www.w3.org/2000/svg">
<rect x="0" y="0" width="30" height="30" fill="green"/>
<set attributeName="viewBox" to="0 0 30 30" begin="0s" fill="freeze"/>
</svg>