Print trace when a node of a specific type is appended to the dom

observer_script.txt

<script>

  const checkNodeType =  Node.COMMENT_NODE;
  
  const observer = new MutationObserver((mutationsList, observer) => {
    for (const mutation of mutationsList) {
      if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
        for (const addedNode of mutation.addedNodes) {
          if (addedNode.nodeType === checkNodeType) {

            console.log('Comment added to DOM:', addedNode.textContent);
            console.trace();
            
          }
        }
      }
    }
  });

  // Here we are watching the head of the dom... We can specific any other node to watch...
  observer.observe(document.head, { childList: true, subtree: true });

</script>