message: Add check for potentially null .getElementById()
diff: @@ -22,4 +22,7 @@ function copyTextHandler() {
  crateTitleAndVersion.style.textTransform = oldTransform;
  }
  -document.getElementById("clipboard").addEventListener("click", copyTextHandler);
  +(function() {
  + const clipboard = document.getElementById("clipboard");
  + if (clipboard != null) clipboard.addEventListener("click", copyTextHandler);
  +})();
  