<svg xmlns="http://www.w3.org/2000/svg">
<defs>
    <clipPath id="clip0">
        <rect width="1" height="1" clip-path="url(#clip)" />

    </clipPath>

    <clipPath id="clip2">
        <rect width="100" height="100" clip-path="url(#clip0)"/>
    </clipPath>

    <clipPath id="clip">
        <rect width="1" height="1" clip-path="url(#clip2)"/>
    </clipPath>

    <mask id="mask1" x="0" y="0" width="1" height="1" maskContentUnits="objectBoundingBox">
        <rect width="1" height="1" clip-path="url(#clip)" />
    </mask>
</defs>

<text x="10" y="75">This test passes if it does not crash.</text>

<circle r="50" mask="url(#mask1)"/>

</svg>