diff --git a/package-lock.json b/package-lock.json
index 2ddfd6131..997697b29 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -33,6 +33,7 @@
         "core-js": "3.41.0",
         "date-fns": "2.30.0",
         "dompurify": "2.5.8",
+        "element-closest-polyfill": "1.0.7",
         "epubjs": "0.3.93",
         "escape-html": "1.0.3",
         "fast-text-encoding": "1.0.6",
@@ -9715,6 +9716,11 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/element-closest-polyfill": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/element-closest-polyfill/-/element-closest-polyfill-1.0.7.tgz",
+      "integrity": "sha512-SX7RrUUEybUllkGjVf5XJR5I0Fl2L0iawK/caX/yJu94xW/WoRRD8Fky65gKpvqhU9PLBKOliIy4Ly2rDRzdUQ=="
+    },
     "node_modules/emoji-regex": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
@@ -32305,6 +32311,11 @@
       "integrity": "sha512-eHhqaja8tE/FNpIiBrvBjFV/SSKpyWHLvxuR9dPTdo+3V9ppdLmFB7ZZQ98qNovcngPLYIz0oOBF9P0FfZef5Q==",
       "dev": true
     },
+    "element-closest-polyfill": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/element-closest-polyfill/-/element-closest-polyfill-1.0.7.tgz",
+      "integrity": "sha512-SX7RrUUEybUllkGjVf5XJR5I0Fl2L0iawK/caX/yJu94xW/WoRRD8Fky65gKpvqhU9PLBKOliIy4Ly2rDRzdUQ=="
+    },
     "emoji-regex": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
diff --git a/package.json b/package.json
index 35d9ed76d..2294f3152 100644
--- a/package.json
+++ b/package.json
@@ -99,6 +99,7 @@
     "core-js": "3.41.0",
     "date-fns": "2.30.0",
     "dompurify": "2.5.8",
+    "element-closest-polyfill": "1.0.7",
     "epubjs": "0.3.93",
     "escape-html": "1.0.3",
     "fast-text-encoding": "1.0.6",
diff --git a/src/lib/legacy/elementAppendPrepend.js b/src/lib/legacy/elementAppendPrepend.js
new file mode 100644
index 000000000..53039f451
--- /dev/null
+++ b/src/lib/legacy/elementAppendPrepend.js
@@ -0,0 +1,75 @@
+/**
+ * MIT License
+ *
+ * Copyright (c) 2016-2025, jszhou
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+// From https://gist.github.com/jickoo/7b4122829240cc415c098aab89d6f49d
+
+// Source: https://github.com/jserz/js_piece/blob/master/DOM/ParentNode/append()/append().md
+(function (arr) {
+    arr.forEach(function (item) {
+        if (Object.prototype.hasOwnProperty.call(item, 'append')) {
+            return;
+        }
+        Object.defineProperty(item, 'append', {
+            configurable: true,
+            enumerable: true,
+            writable: true,
+            value: function append() {
+                const argArr = Array.prototype.slice.call(arguments);
+                const docFrag = document.createDocumentFragment();
+
+                argArr.forEach(function (argItem) {
+                    const isNode = argItem instanceof Node;
+                    docFrag.appendChild(isNode ? argItem : document.createTextNode(String(argItem)));
+                });
+
+                this.appendChild(docFrag);
+            }
+        });
+    });
+})([Element.prototype, Document.prototype, DocumentFragment.prototype]);
+
+// Source: https://github.com/jserz/js_piece/blob/master/DOM/ParentNode/prepend()/prepend().md
+(function (arr) {
+    arr.forEach(function (item) {
+        if (Object.prototype.hasOwnProperty.call(item, 'prepend')) {
+            return;
+        }
+        Object.defineProperty(item, 'prepend', {
+            configurable: true,
+            enumerable: true,
+            writable: true,
+            value: function prepend() {
+                const argArr = Array.prototype.slice.call(arguments);
+                const docFrag = document.createDocumentFragment();
+
+                argArr.forEach(function (argItem) {
+                    const isNode = argItem instanceof Node;
+                    docFrag.appendChild(isNode ? argItem : document.createTextNode(String(argItem)));
+                });
+
+                this.insertBefore(docFrag, this.firstChild);
+            }
+        });
+    });
+})([Element.prototype, Document.prototype, DocumentFragment.prototype]);
diff --git a/src/lib/legacy/index.ts b/src/lib/legacy/index.ts
index 9a836578e..d8dcf9539 100644
--- a/src/lib/legacy/index.ts
+++ b/src/lib/legacy/index.ts
@@ -1,6 +1,7 @@
 import 'core-js/stable';
 import 'regenerator-runtime/runtime';
 import 'jquery';
+import 'element-closest-polyfill';
 import 'fast-text-encoding';
 import 'intersection-observer';
 import 'classlist.js';
@@ -9,6 +10,7 @@ import 'abortcontroller-polyfill'; // requires fetch
 import 'resize-observer-polyfill';
 
 import './domParserTextHtml';
+import './elementAppendPrepend';
 import './focusPreventScroll';
 import './htmlMediaElement';
 import './keyboardEvent';