Why does the same ajax domain request add the jsonp callback parameter?

Question

Well, that should be a fairly simple question, and I probably don't see anything obvious. I have a simple script request to the server:

var DTO = { 'path': path };
var url = 'default.aspx/Get'; 

 var test;
$('#getInstance').click(function () {
            $.ajax({
                url: url,
                type: 'POST',
                dataType: 'json',
                data: JSON.stringify(DTO),
                contentType: 'application/json; charset=utf-8',
                success: function (msg) {                    
                    test = msg;
                },
                error: function (jqXHR, textStatus, errorThrown) {
                    alert(textStatus);
                    alert(errorThrown);
                }
            });

        });

This works great because it connects to the server and returns data with one simple problem. It processes this request as a cross-domain request, therefore using jsonp. Server code is here:

    [WebMethod]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
    public static MyObject Get(string path)
    {
        MyObject foo = new MyObject();

        return foo;
    }

This is usually not a problem, except that I am accessing WebMethod and it has no way to return a jsonp response (this means that it has no way to bind the callback function to the answer. Manual answer, I could crack it and attach the parameter but I use built-in serialization, so I won’t interfere with the reaction.

To help clarify. The page is located at:

http://127.0.0.1:144/default.aspx

, firebug, :

http://127.0.0.1:144/default.aspx/Get?callback=jQuery1502768168154247801_1298656485388

, . , jQuery -. ?

: , , ​​jquery 1.5.1. ( 1.4), , JSON, . , , CORS?

Answer 1

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Answer 2

crossDomain false $.ajax():

$.ajax({
  crossDomain: false,
  // The rest of your options here.
});