 - startTime),
                  firstResponse
                });
            });
          }
        });
      }

      function lengthInUtf8Bytes(json) {
        const str = JSON.stringify(json);
        let m = encodeURIComponent(str).match(/%[89ABab]/g);
        return str.length + (m ? m.length : 0);
      }
    </script>
  </body>
</html>
