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/categories-filters.html

@@ -1,6 +1,6 @@
 <section id="filters">
     <h3>Find <span>a product</span></h3>
-    <form id="form-filters" action="" method="get" role="form">
+    <form id="form-filters" action="" method="get">
         <div class="filter filter-type">
             <fieldset>
                 <legend class="filter-heading">Type</legend>

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">

templates/default/includes/single-product.html

@@ -60,7 +60,7 @@
             </div>
             {if $hasBtn == true}
             {form name="thelia.cart.add" }
-            <form id="form-product-details" action="{url path="/cart/add" }" method="post" role="form" class="form-product">
+            <form id="form-product-details" action="{url path="/cart/add" }" method="post" class="form-product">
                 {form_hidden_fields form=$form}
                 <input type="hidden" name="view" value="product">
                 <input type="hidden" name="product_id" value="{$ID}">