HttpRequest();
            xhttp.addEventListener("load", function() {
              console.log(this.response);
            });
            xhttp.open("POST", "http://192.168.1.20:8082/test-ajax-post");
            xhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
            xhttp.send("name=Lorenzo");

            var xhttp2 = new XMLHttpRequest();
            xhttp2.open("GET", "http://192.168.1.20:8082/test-download-file");
            xhttp2.send();

            fetch(new Re