A page with a form styled (inline or external css) with display: table-cell; causes Safari to hang. <form style="display:table-cell"></form>
A reproducible freeze is arguably as bad as a reproducible crash; bumping priority to P1.
<rdar://problem/3877344>
Created attachment 5859 [details] patch, including a test for LayoutTests
Comment on attachment 5859 [details] patch, including a test for LayoutTests Looks good to me. Nice test case.