Use 128 bit key rather than 192 bit. Because Chrome says it don't support 192 bit AES key.

ui/socket.js

@@ -105,7 +105,7 @@ class Dial {
         enc.encode(rTime)
       );
 
-    return key.slice(0, 24);
+    return key.slice(0, 16);
   }
 
   /**