ajax return is blank to the controller

Question

Ajax return works fine in local, but returns blank when hosted

 

 Url ="/Order/Save"

 parms=json string

 

$.ajax({

type: "POST",
async: false,
url: Url,

dataType: "json",
data: {data: parms.getJSON()},
success: function (data) {
valuesReturned = data;
},
complete: function () { },

error: function (req, status, error) {
return error;
}
});

 

 when tried to catch execption from ajax the error I get is--

A circular reference was detected while serializing an object of type 'System.Reflection.RuntimeModule' 

 

when checked at server side , its hitting the server, but the data received is blank

 

 

 Kindly do the needful.

 

regards