content.js

let wholeArray = [];

var ads = document.getElementsByClassName('ad');
var cads = document.getElementsByClassName('c-ad');
var containers = document.getElementsByClassName('ad-container');
var topBanners = document.getElementsByClassName('top-banner-ad-container');
var adAware = document.getElementsByClassName('ad-awareness-wrapper');
var adWire = document.getElementsByClassName('ad-wireframe-wrapper');
var iframe = document.getElementsByTagName('iframe');
var adSlot = document.getElementsByClassName('ad-slot-container');
var jsBanners = document.getElementsByClassName('js-top-banner');
var google = document.getElementsByClassName('GoogleActiveViewClass');


wholeArray.push(ads, cads, containers, topBanners, adAware, adWire, iframe, adSlot, jsBanners, google);

for (var i = 0; i < wholeArray.length; i++) {
  changeElement(wholeArray[i]);
}

function changeElement(el) {
  if (el) {
    console.log("FOUND", el.length, "ADVERTISEMENTS");

    for (var i = 0; i < el.length; i++) {
      if ( el[i].addEventListener ) {
        el[i].addEventListener("mouseover", mouseOver);
      }
    }
  }
}

function mouseOver() {
  sendPost();
}

function sendPost(dat) {
  let timer;

  clearTimeout(timer);
  timer = setTimeout(function() {
      console.log('sent');
      $.ajax({
        url: "http://localhost:8080/posts",
        type: "POST",
        data: JSON.stringify({
          "data": "We can bring to birth a new world from the ashes of the old ",
        }),
        error: function(e) {
          console.log(e);
        },
        dataType: "json",
        cache: false, 
        contentType: "application/json; charset=utf-8"
      });
  }, 100);
}