Does this little update to the bookmarklet solve the issue? I'm not a webdev, feel free to fix it.

(function () { var i, elements = document.querySelectorAll('body *');

  for (i = 0; i < elements.length; i++) {
    if (getComputedStyle(elements[i]).position === 'fixed') {
      elements[i].parentNode.removeChild(elements[i]);
    }
    // 2017 update:
    if (getComputedStyle(elements[i]).position === 'sticky') {
      elements[i].parentNode.removeChild(elements[i]);
    }
  }

})();