diff --git a/core/manipulate-dom.js b/core/manipulate-dom.js
index b57d878f..a52f5e0d 100644
--- a/core/manipulate-dom.js
+++ b/core/manipulate-dom.js
@@ -116,6 +116,10 @@ manipulateDOM._removeCrossOriginAndIntegrityAttr = function (details) {
                     data.push(chunk);
                 };
 
+                if (decoder === undefined) {
+                    decoder = new TextDecoder(charset);
+                }
+
                 filter.onstop = () => {
                     let str = '';
                     for (let buffer of data) {
diff --git a/pages/updates/updates.html b/pages/updates/updates.html
index a5b07226..286e1013 100644
--- a/pages/updates/updates.html
+++ b/pages/updates/updates.html
@@ -34,6 +34,10 @@
                         <ul>
                             <li>Remove UTF-8-BOM in HTML document (<a href="https://codeberg.org/nobody/LocalCDN/issues/1635">#1635</a>)</li>
                         </ul>
+                        <p>Fixed</p>
+                        <ul>
+                            <li>Initialize TextDecoder with charset if undefined (<a href="https://codeberg.org/nobody/LocalCDN/issues/1636">#1636</a>)</li>
+                        </ul>
                     </div>
                     <div id="generator-section">
                         <div class="topic-label">