1. {"readyState":0,"status":0,"statusText":"error"}

Even i enable the cors($.support.cors = true; ) and crossDomain (crossDomain: true (add in headers)).

Here is the sample request

1. function() {
           $.support.cors = true;
           var everData = {
           "UpdateContactRequestMessage":{
            "channelPartnerID":"123456",
          "email":"greg@gmail.com",
          "firstName":"greg",
          "lastName":"chappel",
          "externalId":"GC123",
          "sessionToken":"f53095854bb230996f54fe32ed5a63f68c7718c7"
           }
         };
   
         jQuery.ajax({
           type: 'POST',
           url: '(here is the url) ',
           contentType: "application/json",
           Accept: "application/json; charset=utf-8",
           dataType: 'json',
           data: JSON.stringify(everData),
           async:true,
           crossDomain: true,
           processData: true,
            success: function(resp){ 
                // we have the response 
                alert("Server said123:\n '" + resp + "'"); 
              }, 
              error: function(e){ 
                console.log('tables: ' + JSON.stringify(e));
              }
         });
       };

But i tested this Restapi call in the 'postman' google chrome extension i got the response(successfully got the response).

Here is the response headers

1. access-control-allow-headers → client_type, content-type, accept, accept-language, auth_token_base64, appID, accept-encoding, content-length, x-requested-with
   
   access-control-allow-methods → POST, GET, OPTIONS, DELETE
   
   access-control-allow-origin → *
   
   allow → GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS
   
   content-length → 92
   
   content-type → application/json
   
   x-frame-options → sameorigin
   
   x-webobjects-loadaverage → 0

Anyone help me why i didn't get response from rest api call in JqueryAjax post calls.