Implement cybersource silent order post with ajax

[MariOkudoduma]

I am using cybersource silent order post inside magento one page checkout. I want to do ajax post to "https://testsecureacceptance.cybersource.com/silent/pay/ /voojioshagle" . But it's giving me below error:- "XMLHttpRequest cannot load https://testsecureacceptance.cybersource.com/silent/pay/ omegle. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin is therefore not allowed access. The response had HTTP status code 403"

I want answer specific to cybersource. Let me know if there is another option except ajax

Please find below my code:-

var url = jQuery("#post_url").val();
var access_key=jQuery("#access_key").val();
var profile_id=jQuery("#profile_id").val();
var signed_field_names=jQuery("#signed_field_names").val();
var unsigned_field_names=jQuery("#unsigned_field_names").val();
var bill_to_forename=jQuery("#bill_to_forename").val();
var bill_to_surname=jQuery("#bill_to_surname").val();
var bill_to_email=jQuery("#bill_to_email").val();
var bill_to_phone=jQuery("#bill_to_phone").val();
var bill_to_address_line1=jQuery("#bill_to_address_line1").val();
var bill_to_address_city=jQuery("#bill_to_address_city").val();
var bill_to_address_state=jQuery("#bill_to_address_state").val();
var bill_to_address_country=jQuery("#bill_to_address_country").val();
var bill_to_address_postal_code=jQuery("#bill_to_address_postal_code").val();
var signed_date_time=jQuery("#signed_date_time").val();
var locale=jQuery("#locale").val();
var card_type=jQuery("#cybersource_cc_type").val();
var card_number=jQuery("#cybersource_cc_number").val();
var card_expiry_date=jQuery("#cybersource_expiration").val();
var params ='access_key='+access_key+ '&profile_id='+profile_id+ '&signed_field_names='+signed_field_names+ '&bill_to_forename='+bill_to_forename+ '&bill_to_surname='+bill_to_surname+ '&bill_to_email='+bill_to_email+'&bill_to_phone='+bill_to_phone+'&bill_to_address_line1='+bill_to_address_line1+'&bill_to_address_city='+bill_to_address_city+'&bill_to_address_state='+bill_to_address_state+'&bill_to_address_country='+bill_to_address_country+'&bill_to_address_postal_code='+bill_to_address_postal_code+'&signed_date_time='+signed_date_time+'&locale='+locale+'&card_type='+card_type+'&card_number='+card_number+'&card_expiry_date='+card_expiry_date;
//alert(url);
var http= new XMLHttpRequest();
http.open("POST", url, true);
http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
http.send(params);
//Send the proper header information along with the request

http.onreadystatechange = function() {//IT NEVER COMES BACK TO THIS SECTION
    if(http.readyState == 4) {
        alert(http.responseText);
        console.log("I came back");
    }
}