diff --git a/sonoff/xdrv_01_webserver.ino b/sonoff/xdrv_01_webserver.ino
index 4bacc6ae0..84e07872b 100644
--- a/sonoff/xdrv_01_webserver.ino
+++ b/sonoff/xdrv_01_webserver.ino
@@ -59,17 +59,16 @@ const char HTTP_HEAD[] PROGMEM =
   "function eb(s){"
     "return document.getElementById(s);"  // Alias to save code space
   "}"
-//  "eb=s=>document.getElementById(s);"     // Alias to save code space - ES6 fails on old browsers like IE
-
   "function qs(s){"                       // Alias to save code space
     "return document.querySelector(s);"
   "}"
-//  "qs=s=>document.querySelector(s);"      // Alias to save code space - ES6 fails on old browsers like IE
-
   "function sp(i){"                       // Toggle password visibility
     "eb(i).type=(eb(i).type==='text'?'password':'text');"
   "}"
-//  "sp=i=>eb(i).type=(eb(i).type==='text'?'password':'text');"  // Toggle password visibility - ES6 fails on old browsers like IE
+// Following bytes saving ES6 syntax fails on old browsers like IE 11 - https://kangax.github.io/compat-table/es6/
+//  "eb=s=>document.getElementById(s);"     // Alias to save code space
+//  "qs=s=>document.querySelector(s);"      // Alias to save code space
+//  "sp=i=>eb(i).type=(eb(i).type==='text'?'password':'text');"  // Toggle password visibility
 
   // https://www.htmlgoodies.com/beyond/javascript/article.php/3724571/Using-Multiple-JavaScript-Onload-Functions.htm
   "function wl(f){"                       // Execute multiple window.onload