diff --git a/frontend/js/viewer.js b/frontend/js/viewer.js
index bec38d6..2d36b65 100644
--- a/frontend/js/viewer.js
+++ b/frontend/js/viewer.js
@@ -600,13 +600,8 @@ function renderFile(data) {
 
 
 // ---------------------------------------------------------------------------
-// Helpers
+// Helpers (escapeHtml imported from utils.js)
 // ---------------------------------------------------------------------------
-function escapeHtml(str) {
-  if (!str) return "";
-  return String(str).replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/"/g, "&quot;");
-}
-
 function el(tag, attrs, children) {
   const e = document.createElement(tag);
   if (attrs) {