<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<bindings
xmlns="http://www.mozilla.org/xbl"
xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
xmlns:xbl="http://www.mozilla.org/xbl"
xmlns:html="http://www.w3.org/1999/xhtml">
<binding id="qwe">
<content>
<xul:label style="-moz-binding: url(#xar)" xbl:inherits="xbl:text=label" flex="1"/>
</content>
</binding>
<binding id="xar">
<content>
<html:table><children/></html:table>
</content>
</binding>
</bindings>
<script type="text/javascript">
function boom()
{
document.getElementById("b").setAttribute('label', "1 2 3");
document.documentElement.offsetHeight;
document.getElementById("b").removeAttribute('label');
}
</script>
</head>
<body onload="boom();">
<div style="width: 0px;"><box id="b" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" style="-moz-binding: url(#qwe);"/></div>
</body>
</html>