I am trying to send a request to the Web API hosted in another domain. In fiddler when I intercept the calls it makes a OPTIONS request only when I add headers. If I remove the headers option from the ajax call, it sends a GET request but there is no response in either case. Can anyone please explain me why the calls are intercepted differently when I add a header option.

$.ajax({           

            url: request.url,

            method: 'GET',

            //dataType: 'json',

            //data: request.body,

            //contentType: 'text/plain',

            headers:{"a":"b"},

            beforeSend: function () {                

              

            },

            success: function (data, textStatus, request) {               

           

            },

            error: function (e) {

               

            },

            complete: function () {

               

            }

        });