diff --git a/copyparty/__version__.py b/copyparty/__version__.py
index d673f7ff..53aa4731 100644
--- a/copyparty/__version__.py
+++ b/copyparty/__version__.py
@@ -1,6 +1,6 @@
 # coding: utf-8
 
-VERSION = (1, 9, 22)
+VERSION = (1, 9, 23)
 CODENAME = "prometheable"
 BUILD_DT = (2023, 12, 1)
 
diff --git a/copyparty/web/md2.js b/copyparty/web/md2.js
index e8c8ec40..b660ec37 100644
--- a/copyparty/web/md2.js
+++ b/copyparty/web/md2.js
@@ -933,8 +933,10 @@ var set_lno = (function () {
     var keydown = function (ev) {
         if (!ev && window.event) {
             ev = window.event;
-            toast.warn(10, 'hello from fallback code ;_;\ncheck console trace');
-            console.error('using window.event');
+            if (localStorage.dev_fbw == 1) {
+                toast.warn(10, 'hello from fallback code ;_;\ncheck console trace');
+                console.error('using window.event');
+            }
         }
         var kc = ev.code || ev.keyCode || ev.which,
             editing = document.activeElement == dom_src;
diff --git a/copyparty/web/util.js b/copyparty/web/util.js
index ea152b8d..acd19177 100644
--- a/copyparty/web/util.js
+++ b/copyparty/web/util.js
@@ -279,8 +279,10 @@ function anymod(e, shift_ok) {
 function ev(e) {
     if (!e && window.event) {
         e = window.event;
-        toast.warn(10, 'hello from fallback code ;_;\ncheck console trace');
-        console.error('using window.event');
+        if (localStorage.dev_fbw == 1) {
+            toast.warn(10, 'hello from fallback code ;_;\ncheck console trace');
+            console.error('using window.event');
+        }
     }
     if (!e)
         return;