screenspan

// Imports
const WebPageTest = require("webpagetest");
const fs = require("fs");
var download = require("download-file"); // Install download-file https://www.npmjs.com/package/download-file
const Influx = require("influx"); // Download and install InfluxDB https://v2.docs.influxdata.com/v2.0/get-started/
const influx = new Influx.InfluxDB({
  host: "localhost",
  database: "webpagetest",
  port: 8086
});

screenspan

document.addEventListener("DOMContentLoaded", function() {
  var lazyImages = [].slice.call(document.querySelectorAll(".lazy > source"));

  if ("IntersectionObserver" in window) {
    console.log("IntersectionObserver is supported. Rock on!");
    let lazyImageObserver = new IntersectionObserver(
      function(entries, observer) {
        entries.forEach(function(entry) {
          if (entry.isIntersecting) {
            let lazyImage = entry.target;