<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/licenses/publicdomain/
-->
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
<body style="margin:0">
<embed type="application/x-shockwave-flash" src="data:application/x-shockwave-flash,This is a test"></embed>
<iframe src="date:text/plain,aaa"></iframe>
<div style="mask: url(#m1); width:500px; height:500px; background:lime;"></div>
<svg:svg height="0">
<svg:mask id="m1" maskUnits="objectBoundingBox" maskContentUnits="objectBoundingBox">
<svg:linearGradient id="g" gradientUnits="objectBoundingBox" x2="0" y2="1">
<svg:stop stop-color="white" offset="0"/>
<svg:stop stop-color="white" stop-opacity="0" offset="1"/>
</svg:linearGradient>
<svg:circle cx="0.25" cy="0.25" r="0.25" id="circle" fill="white"/>
<svg:rect x="0.5" y="0" width="0.5" height="1" fill="url(#g)"/>
</svg:mask>
</svg:svg>
</body>
</html>