Just the script

url_scrape.js

// once you're done, the collected global should have the entire list
var start = $$('.a-d .a-u').length;

console.log('starting at', start);

var goal = 10000;
var collected;

var max = window.scrollMaxY;
window.scrollBy(0, window.scrollMaxY);

// console.log(max)
var loop;

function scroll() {
  loop = setInterval(function() {
    window.scrollBy(0, window.scrollMaxY);
    if (window.scrollMaxY > max) {
      max = window.scrollMaxY;
    } else {
      clearInterval(loop);
      console.log("length: ", $$('.a-d .a-u').length)
      if ($$('.a-d .a-u').length < goal) {
        $('.h-a-Hd-mb').click();
        scroll();
      }
      else {
        collected = $$('.a-d .a-u');
      }
    }
  }, 2000);
}

scroll();