<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>ASSERTION: Options collection broken</title> </head> <body> <div> <select> <option id="n29">B <optgroup label="middle" id="n20"> <option>N</option> </optgroup> </option> <option>M</option> </select> </div> </body> </html>