<!DOCTYPE html>
<html>
<body>
<head>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
</script>
<style>
svg {
    height: 0;
    width: 0;
}
</style>
</head>
<p>This tests that we don't cause an assertion failure when re-parenting a &lt;tref&gt; after temporarily removing its referenced element.</p>
<svg>
    <circle id="a"></circle>
    <text>
        <tref xlink:href="#a" id="b"></tref>
    </text>
</svg>
<div id="c"></div>
<div id="a"></div>
<script>
var a = document.getElementById("a"); // <circle>
var b = document.getElementById("b"); // <tref>
a.parentNode.removeChild(a);
b.appendChild(a);
b.parentNode.removeChild(b);
document.getElementById("c").appendChild(b);
</script>
<p>PASS</p>
</body>
</html>