From 5462af0dc786700a2a70e4ed199ca9905e0ad6ce Mon Sep 17 00:00:00 2001
From: PizZaKatZe <pizzakatze@chaos-siegen.de>
Date: Tue, 13 Apr 2021 01:41:26 +0200
Subject: [PATCH] Fix first login with empty local storage

During first login on a new domain the local storage is empty. This led
to a TypeError and hence blank black screen.
---
 front/src/Connexion/LocalUser.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/front/src/Connexion/LocalUser.ts b/front/src/Connexion/LocalUser.ts
index b8e0a204..56483976 100644
--- a/front/src/Connexion/LocalUser.ts
+++ b/front/src/Connexion/LocalUser.ts
@@ -14,8 +14,8 @@ export function isUserNameValid(value: string): boolean {
     return regexp.test(value);
 }
 
-export function areCharacterLayersValid(value: string[]): boolean {
-    if (!value.length) return false;
+export function areCharacterLayersValid(value: string[] | null): boolean {
+    if (!value || !value.length) return false;
     for (let i = 0; i < value.length; i++) {
         if (/^\w+$/.exec(value[i]) === null) {
             return false;