function isIE(){
  return ua.indexOf('MSIE ') > 0 || ua.indexOf('Trident/') > 0;
}
document.querySelector("[contenteditable]").addEventListener("paste", function (e) {
  e.preventDefault();
  let text = "";
  if (isIE()) {
    text = window.clipboardData.getData('text');
    e.target.innerText += text;
  } else {
    text = e.clipboardData.getData('text/plain');
    document.execCommand("insertHTML", false, text);
  }
  if (text !== null && text.trim().length > 0) {
    $(this).siblings(/* Fake Placeholder */).hide();
  }
});