Why my IP Address shows if I use alert() in Javascript?

Question

Here's the screenshot and the code. And how can I change it to something like "This page says" then alert().

  <button id="hover-me"> Move the cursor over here </button>

  document.getElementById("hover-me").onmouseover = function() {
  alert("You hovered me")};

Answer 1

AFAIK you can't edit that for security reasons.

You could always make a custom modal box, though.