Update index.html

index.html

@@ -73,7 +73,7 @@
         function generateToken(length) {
             const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
             let result = '';
-            for (let i = 0; i < length; i++) {
+            for (let i = 0; length > i; i++) {
                 result += characters.charAt(Math.floor(Math.random() * characters.length));
             }
             return result;