Remove role="form" on a form element.

Role Form should be use on a region of the document that  represents a collection of form-associated elements.
<div role=”form”></div> GOOD
<form role=”form”></form> BAD

templates/default/includes/mini-cart.html

@@ -4,7 +4,7 @@
         {intl l="Cart"} <span class="badge">{cart attr="count_item"}</span>
     </a>
     <div class="dropdown-menu cart-content">
-        <form id="form-cart-mini" action="{url path="/order/delivery"}" method="post" role="form">
+        <form id="form-cart-mini" action="{url path="/order/delivery"}" method="post">
             <table class="table table-cart-mini">
                 <colgroup>
                     <col width="70">