<!DOCTYPE html>
<p>This tests nesting two spans with -webkit-isolate followed by a br. The test passes if WebKit doesn't crash.</p>
<span style="unicode-bidi:-webkit-isolate;"><span style="unicode-bidi:-webkit-isolate;">a</span></span><br>
<script>

if (window.testRunner)
    testRunner.dumpAsText();

</script>