r imageObj = new Image();
        imageObj.src = allCharts[i];
        ctx.drawImage(imageObj, 0, i * 200, 800, 200);
      }

      $.ajax({
        type: "POST",
        url: "/",
        data: c.toDataURL("image/png").substr(22),
        success: function (data) {
          console.log("Image uploaded");
        }
      });
    }
  </script>
  </head>
  <body>
  <div id="summary" style="width: 800px">
    <div id="throughput" style="height: 200px"></div>
  </div>
  <div id="latencies0" style="width: 800p