Magento session using Json not working in IE - json

Question

I,m trying to access Magento session data outside Magento using Json.Json is working fine in IE but when i tried to access Magento session data using json then it does't work.
Code works in FF,Chrome,Opera .. but not in IE 7
Here is my server.php file
<?php
$mageFilename = 'app/Mage.php';
require_once $mageFilename;
Mage::app();
if(isset($_GET['cart_item'])){
Mage::getSingleton('core/session', array('name'=>'frontend'));
$_cartQty=0;
$_cartItem='My Bag is empty';
foreach (Mage::helper('checkout/cart')->getCart()->getItems() as $item){
$_cartQty+=$item->getQty();
}
if ($_cartQty>0)
$_cartItem='My Bag ('. $_cartQty.')';
echo $_GET['callback'] . '('.json_encode(array('response'=>$_cartItem)).');';
}
?>
here is my client.html file
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
function change_cart_item(){
var cartItemUrl=jQuery('#cart_item_url').val();
jQuery.getJSON(cartItemUrl, function(json) {
var result=json.response;
alert(result);
//var cartItem = jQuery(result).find('#cart_item').html();
//jQuery("#show_cart span").html(result);
});
return false;
}
</script>
<input id="cart_item_url" name="cart_item_url" type="hidden" value="http://test.com/ie.php?callback=?&cart_item=cart_item" />
<input type="button" onclick="change_cart_item()" value="Change cart item" />
The above code always return "My Bag is empty" in IE.

Answer 1

I suggest checking why IE doesn't send the cookie headers to the /ie.php script. IE must somehow evaluate the cookie path value differently.
As a workaround try implementing a regular Magento action controller that simply returns the JSON, since that is bound to receive the cookie headers by IE (otherwise the whole store front of Magento would not work with IE).
To return JSON from a action controller use:
public function jsonAction()
{
$_cartItem = 'My Bag is empty';
$_cartQty = Mage::helper('checkout/cart')->getItemsQty();
if ($_cartQty > 0) {
$_cartItem = 'My Bag ('. $_cartQty.')';
}
$this->getResponse()->setBody(
$_GET['callback'] . '(' . Mage::helper('core')->jsonEncode(array('response'=>$_cartItem)).');'
);
}

Answer 2

There is a bug in IE's implementation of WinInet. If you have a cookie that has a path with a filename in it, IE will not make it available via the document.cookies property in Javascript. Such a cookie should be transmitted to the server though.