private static void default_handler (Soup.Server server, Soup.Message msg, string path, GLib.HashTable? query, Soup.ClientContext client) {
            unowned ProxyServer self = server as ProxyServer;

            uint id = self.access_counter++;
            stdout.printf ("Default handler start (%u)\n", id);

            // Simulate asynchronous input / time consuming operations:
            // See GLib.IOSchedulerJob for time consuming operations
            Timeout.add_seconds (0, () => {
                stdout.printf(msg.uri.to_string(false)+"\n");
                stdout.printf(msg.uri.get_path()+"\n");

                int messagelog_id = self.ms.store_message(msg);

                Soup.SessionAsync session = new Soup.SessionAsync ();

                Soup.Message target_msg = new Soup.Message.from_uri (msg.method, msg.uri);
                msg.request_headers.foreach((name, val) => {
                    target_msg.request_headers.append(name,val);
                });
                session.queue_message (target_msg,(sess, target_msg_incoming) =>{

                    target_msg_incoming.response_headers.foreach ((name, val) => {
                    stdout.printf ("%s = %s\n", name, val);
                    });
                    stdout.printf ("Status Code: %u\n", target_msg_incoming.status_code);
                    stdout.printf ("Message length: %lld\n", target_msg_incoming.response_body.length);
                    //stdout.printf ("Data: \n%s\n", (string) target_msg_incoming.response_body.data);
                    stdout.printf ("Content-type: %s\n", target_msg_incoming.response_headers.get_content_type(null));

                    string content_type = target_msg_incoming.response_headers.get_content_type(null);

                    msg.set_response (content_type, Soup.MemoryUse.COPY, target_msg_incoming.response_body.data);
                    msg.set_status (target_msg_incoming.status_code);

                    target_msg_incoming.response_headers.foreach((name, val) => {
                        if (name != "Date"){
                            msg.response_headers.append(name,val);
                        }
                    });
                    if (content_type == "(null)") {
                        msg.response_headers.remove("Content-type");
                    }

                    self.ms.complete_message(messagelog_id, msg);


                    // Resumes HTTP I/O on msg:
                    self.unpause_message (msg);



                });

                stdout.printf ("Default handler end (%u)\n", id);
                return false;
            }, Priority.DEFAULT);

            // Pauses HTTP I/O on msg:
            self.pause_message (msg);
        }