diff --git a/libretranslate/app.py b/libretranslate/app.py
index e877579..662351d 100644
--- a/libretranslate/app.py
+++ b/libretranslate/app.py
@@ -302,9 +302,9 @@ def create_app(args):
       if args.disable_web_ui:
             abort(404)
 
-      return render_template("app.js.template", 
+      return Response(render_template("app.js.template", 
             url_prefix=args.url_prefix,
-            get_api_key_link=args.get_api_key_link)
+            get_api_key_link=args.get_api_key_link), content_type='application/javascript; charset=utf-8')
 
     @bp.get("/languages")
     @limiter.exempt
diff --git a/libretranslate/templates/index.html b/libretranslate/templates/index.html
index 7581372..1f2dfb2 100644
--- a/libretranslate/templates/index.html
+++ b/libretranslate/templates/index.html
@@ -97,7 +97,7 @@
 	
 					var btnChangeLangs = document.getElementsByClassName("change-language");
 					var localePanels = document.getElementsByClassName("locale-panel");
-					console.log(btnChangeLangs);
+
 					for (var i = 0; i < btnChangeLangs.length; i++){
 						(function(btn){
 							btn.addEventListener('click', function(e){