I have been struggling with this for some times.. I searched around but didnt get a solution yet. This is only an issue on production server. In my development environment, everything works just fine.

I am using JQuery/Ajax to update product information based on product's Color attribute. for example, a product has A and B color, the price for color A is different from color B. When user choose different color, the price information is updated as well.

What I did is to first add a javascript function: function updateProductVariant() { var myval = jQuery("#<%=colorDropDownList.ClientID%>").val();

                jQuery.ajax({
                    type: "POST",
                    url: "/Products.aspx/GetVariantInfoById",
                    data: "{variantId:'" + myval + "'}",
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",

                    success: function (response) {
                        var obj = jQuery.parseJSON(response.d);

                        jQuery("#<%=lblStockAvailablity.ClientID%>").text(obj.StockMessage);
                        jQuery(".price .productPrice").text(obj.CurrentPrice);
                        jQuery(".price .oldProductPrice").text(obj.OldPrice);
                    }

                });
            }

Then I can register the dropdown list's 'onclick' event point to function 'updateProductVariant'

GetVariantInfoById is a WebGet method in the codebehind, its also very straightforward: [WebMethod] public static string GetVariantInfoById(string variantId) { int id = Convert.ToInt32(variantId); ProductVariant productVariant = IoC.Resolve().GetProductVariantById(id); string stockMessage = productVariant.FormatStockMessage(); StringBuilder oBuilder = new StringBuilder(); oBuilder.Append("{"); oBuilder.AppendFormat(@"""{0}"":""{1}"",", "StockMessage", stockMessage); oBuilder.AppendFormat(@"""{0}"":""{1}"",", "OldPrice", PriceHelper.FormatPrice(productVariant.OldPrice)); oBuilder.AppendFormat(@"""{0}"":""{1}""", "CurrentPrice", PriceHelper.FormatPrice(productVariant.Price)); oBuilder.Append("}"); return oBuilder.ToString(); }

All these works fine on my local box, but if i upload to the production server, catching the traffic using fiddler, /Products.aspx/GetVariantInfoById becomes a Get call instead of a POST

On my local box, HTTP/1.1 200 OK Server: ASP.NET Development Server/10.0.0.0 Date: Thu, 03 Mar 2011 09:00:08 GMT X-AspNet-Version: 4.0.30319 Cache-Control: private, max-age=0 Content-Type: application/json; charset=utf-8 Content-Length: 117 Connection: Close

But when deployed on the host, it becomes HTTP/1.1 302 Found Proxy-Connection: Keep-Alive Connection: Keep-Alive Content-Length: 186 Via: 1.1 ADV-TMG-01 Date: Thu, 03 Mar 2011 08:59:12 GMT Location: http://www.pocomaru.com/Products.aspx/GetVariantInfoById/default.aspx Server: Microsoft-IIS/7.0 X-Powered-By: ASP.NET

then of course, then it returns 500 error title>Unknown web method GetVariantInfoById/default.aspx.
Parameter name: methodName

Can someone please take a look? I think its some configuration in the production server which automatially redirects my webservice call to some other URL, but since the product server is out of my control, i am seeking a local fix for this. Thanks for the help!