data is null when I retrieve from ajax call but working in IE

Question

Hi I am using jquery ajax method to retrieve data. It is working in IE but I am getting data as null in FF and Google chrome. I think the problem is, mozilla cant get 'data', because alert(data) returns null. even I debug in firebug It is showing data is null

My code is

$.ajax({
            type: "POST",
            url: "http://myserver.com/idpwd.asmx/idpwd",
            data: "{ 'userID': '" + $("#usrid").val() + "','password': '" + $("#password").val() + "' }",
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: Success,
            error: Error
        });

Answer 1

Two things I notice here:

• Your JSON string is not valid. Key/Value pairs need to have double quotes
• The hostname is probably not the same you're executing your ecma-/javascript