<!DOCTYPE html>
<html>
<head>
<script>
if (window.testRunner)
    testRunner.dumpAsText();

function runTest() {
    document.getElementById("column1").width = "90";
    var firstRow = document.getElementById("firstRow");
    firstRow.removeChild(firstRow.firstElementChild);
    document.getElementById("row").offsetWidth;
}
</script>
<style>
.column2 {
    width: 10px;
}
</style>
</head>
<body onload="runTest()">
<table>
    <colgroup>
        <col id="column1" class="column1">
        <col class="column2">
    </colgroup>
    <tbody>
        <tr id="firstRow">
            <td colspan="4"></td>
        </tr>
        <tr id="row">
            <td colspan="4"></td>
        </tr>
    </tbody>
</table>
<p>This test PASSED if it doesn't cause a crash, especially when run with Guard Malloc or MallocScribble enabled.</p>
</body>
</html>