jQuery Forum

Can somebody explain why this HTML doesn't work for jquery mobile alpha 4? Aren't checkbox arrays supported? How do I make it work?

<div data-role="collapsible-set">
    <div data-role="collapsible">
        <h3>Vegetables</h3>
        <div data-role="fieldcontain">
            <fieldset data-role="controlgroup">
                <input type="checkbox" name="chk0[24]" id="chk0[24]" class="custom" />
                <label for="chk0[24]">Carrots</label>
               
                <input type="checkbox" name="chk0[75]" id="chk0[75]" class="custom" />
                <label for="chk0[75]">Eggplant</label>
            </fieldset>
        </div>
    </div>
</div>