Calling webservice working in IE but not in FF

Calling webservice working in IE but not in FF

 Hi,

Can anyone tell me why the following code results in an error in Firefox&Chrome  and success in Internet Explorer?



   var serviceUrl = 'http://localhost:1983/Service1.asmx/GetUserProfile';

    var inputjsonData = JSON.stringify({ 'parameters': '<UserDetails><UserID>' + userId +'</UserID></UserDetails>' });

    $.ajax({

        type: "POST",

        url: serviceUrl,

        data: inputjsonData,

        contentType: "application/json; charset=utf-8",

        dataType: "json",

        success: function (usr_msg) { UserProfile(usr_msg); },

        error: function AjaxFailed(result) { alert(result.status + ' ' + result.statusText); }

});