$.ajaxでcookieも送信
IE10未満は不可
$.ajax({
    type:'post',
    url:'url',
    dataType:'text',
    data:data,
    crossDomain:true,
    cache:false,
    xhrFields: {
        withCredentials:true
    },
    success:function(data, dataType){
        
    },
    error:function(XMLHttpRequest, textStatus, errorThrown){
        
    },
    complete:function(){
        
    }
});