sortable.serialize options

sortable.serialize options


Hi,
I have a list :
<ol id="order">
<li id="item_1" class="sortable">first</li>
<li id="item_2" class="sortable">second </li>
</ol>
If I understood well the doc :
serial = $jq('#order').sortable('serialize', { key: 'order'});
alert(serial); should display order[]=1&order[]=2
but its displays : item[]=order&item[]=order
Is that a bug or I missunderstood the doc? thanks
This is working :
serial = $jq('#order').sortable();
alert(serial);
<ol id="order">
<li id="order_1" class="sortable">first</li>
<li id="order_2" class="sortable">second </li>
</ol>
should