How to click item on a new website HTML and JS

Question

I am trying to code an auto clicker that can open a new tab on the click of an HTML button and start clicking. When clicked, JS should open a new tab and begin clicking. However, it does not seem to work. I have figured out that the JS will not run on a new tab, but I can't figure out how to fix it. Code sample below:

function updateButton() {
  window.open("https://clickthatbutton.com", '_blank');
  document.getElementById("submit").click();
}

Answer 1

Documentation says window.open returns object representing created window. So you can store it in variable and access its document:

function updateButton() {
  const w = window.open("https://clickthatbutton.com", '_blank');
  w.document.getElementById("submit").click();
}