content.js

   1 const script = document.createElement("script")
   2 script.innerHTML = "console.log = console.clear = _ => {}"
   3
   4 new MutationObserver(mutations =>
   5         mutations.forEach(mutation =>
   6                 mutation.addedNodes.forEach(node => {
   7                         if (node.tagName == "HEAD")
   8                                 node.appendChild(script)
   9                 })))
  10         .observe(document, {childList: true, subtree: true})