XMLHttpRequest.js

            var xhr = new XMLHttpRequest();
            xhr.open("GET", "https://raw.githubusercontent.com/stepanger/Chocolate/storage/data/base.json", true);
            xhr.onreadystatechange = function() {
                if (xhr.readyState == 4) {
                    console.log( xhr.responseText );
                }
            }
            xhr.send();