jQuerify.js From http://bgrins.github.io/devtools-snippets/#dataurl

jquerify.js

(function() {
  if (!window.jQuery) {
    var s = document.createElement('script');
    s.setAttribute('src', 'https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js');
    document.body.appendChild(s);
  }
})();