<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" onload="runTest()">
    <script>
        if (window.testRunner)
            testRunner.dumpAsText();

        function runTest() {
            document.getElementById("rect").setAttribute("fill",  "url(#bar)");
        }
    </script>
    <text x="0" y="70">This should not leak</text>
    <rect width="50" height="50" fill="url(#foo)" id="rect"/>
</svg>