LayoutTests/fast/inline/non-supported-ifc-content-crash-after-mutation.html

<style>
pre { 
  writing-mode: vertical-lr;
}
</style>
<pre id=pre>PASS if no crash</pre>
<br id=move_this>
<script>
if (window.testRunner)
  testRunner.dumpAsText();
document.body.offsetHeight;
document.body.style.columnCount = "2";
document.body.offsetHeight;
pre.appendChild(move_this);
</script>