$ echo '</b>' | php maintenance/parse.php
<p></b>
</p>
$ echo '</b>' | tests/parse.js
<body data-parsoid="{}"><p data-parsoid='{"dsr":[0,4,0,0]}'></p>
</body>
The lonely close tag is stripped by Parsoid, but it is sanitized (treated as literal non-markup text) by the PHP parser.
Version: unspecified
Severity: normal