$.ajax({
    url : url,
    dataType : 'html',
    success : function(data, status, xhr) {
    $(dataContainer).append(data);
    },
    complete: function(xhr, status, error) {
    if (xhr.status != 200) {
        $.logger(xhr.getResponseHeader('Location'));
        }
    }
});

$.ajax({
    xhrFields: { withCredentials: true },
    url : url,
    dataType : 'html',
    success : function(data, status, xhr) {
    $(dataContainer).append(data);
    },
    complete: function(xhr, status, error) {
    if (xhr.status != 200) {
        $.logger(xhr.getResponseHeader('Location'));
        }
    }
});

response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "GET,POST,OPTIONS");
response.setHeader("Access-Control-Max-Age", "1728000");
response.setHeader("Access-Control-Allow-Headers", "Cookie,X-Requested-With");
response.setHeader("Access-Control-Allow-Credentials", "true");
response.setHeader("Access-Control-Expose-Headers", "Location");

response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));

$.ajax({
    xhrFields: { withCredentials: true },
    url : url,
    dataType : 'html',
    crossDomain: true,
    success : function(data, status, xhr) {
    $(dataContainer).append(data);
    },
    complete: function(xhr, status, error) {
    if (xhr.status != 200) {
        $.logger(xhr.getResponseHeader('Location'));
        }
    }
});

jQuery.support.cors = true;

param.async = true;
param.xhrFields = { withCredentials: true };
param.crossDomain = true,
param.processData = false;
param.headers = {
    "content-type":"application/json",
    "cache-control": "no-cache",
}

var request = $.ajax(param);

request.done(function( result,status,xhr ){
    console.log(xhr.getResponseHeader("Location"));
});

Cache-control: no-cache, no-store
Connection: keep-alive
Content-Length: 1403
Content-Type: text/html; charset=utf-8
Date: Wed, 23 May 2018 05:23:14 GMT
Location: https://accounts.google.com/o/oauth2/v2/auth?state=<my state code>&redirect_uri=<my redirect url>&prompt=select_account&response_type=code&client_id=<my client id>&scope=<my scope>&access_type=online
Server: nginx/1.4.6 (Ubuntu)
X-Content-Type-Options: nosniff