After verifying steps described in the OSLC workshop for Java based authentication, i get a authfail when attempting to pass a username+password when calling the login page using Javascript/Jquery.
Question : I read in some of the earlier posts that the session cookies need to be passed in the request header with the login call. If true, how does one retrieve them in Javascript ?
The respHeaderString  variable below in my code snippet is empty when attempting the same.
Is there a Javascript example to refer?

//Set session cookies.
 jQuery.get("https://rtc.fmr.com/jazz/authenticated/identity", function (data) {
                alert("Data Loaded: " + data);
            });

// Form Login
var username = Base64.encode("test");
 var password = Base64.encode("test");
 var jqRespObj = $.ajax({
                                    type: "PUT",
                                    url: "https://rtc.fmr.com/jazz/jts/authenticated/j_security_check?j_username="                   +  username + "&j_password=" + password,
                                    cache: false,
                                    async: false,
                                    xhrFields:{
                                                       withCredentials: true
                                                    },
                                    crossDomain: true,
                                    dataType: "xml",
                                    success: function(result) {
                                        alert("Login successful ");
                                    }
                                });
              
 var respHeaderString = jqRespObj.getAllResponseHeaders();
            
           
jQuery.get("https://rtc.fmr.com/jazz/authenticated/identity", function (data) {
                alert("Data Loaded: " + data);
            });
            var rootServiceResp = $.ajax({
                                    type: "GET",
                                    url: "https://rtc.fmr.com/jazz/rootservices",
                                    cache: false,
                                    async: false,
                                    xhrFields: {
                                        withCredentials: true
                                    },
                                    crossDomain: true,
                                    dataType: "xml",
                                    success: function (result) {
                                        alert("Root Service xml recieved " + data);
                                    }