혹시 써보신분들 후기좀 들어볼수 있을까요??

<script> (function(){(function (el) { function removeFromDom(alert) { if (alert.parentNode) if (alert.childNodes.length > 1) { for (var f = document.createDocumentFragment(); alert.childNodes.length > 0; ) f.appendChild(alert.childNodes[0]); alert.parentNode.replaceChild(f, alert); } else alert.firstChild ? alert.parentNode.replaceChild(alert.firstChild, alert) : alert.parentNode.removeChild(alert); } function clean(_el) { if (_el) try { for (var alerts = _el.querySelectorAll(".gr_"), len = alerts.length, i = 0; i < len; i++) removeFromDom(alerts[i]); } catch (e) {} } function redefineInnerHTML(el) { try { Object.defineProperty(el, "innerHTML", { get: function() { try { var r = el.ownerDocument.createRange(); r.selectNodeContents(el); var cnt = r.cloneContents(), d = document.createElement("div"); return d.appendChild(cnt), clean(d), d.innerHTML; } catch (e) { return ""; } }, set: function(value) { try { var r = el.ownerDocument.createRange(); r.selectNodeContents(el), r.deleteContents(); var df = r.createContextualFragment(value); el.appendChild(df); } catch (e) {} } }); } catch (e) {} } if (el) { var nativeClone = el.cloneNode; el.cloneNode = function(val) { var n = nativeClone.call(el, val); if (el.classList.contains("mceContentBody")) n.innerHTML = el.innerHTML, clean(n); else try { redefineInnerHTML(n); } catch (e) {} return n; }, redefineInnerHTML(el); } })(document.querySelector("[data-gramm_id='06be0f03-938c-8e36-f15f-21d4f0f934db']")) })()