#60

frontend/src/pages/posts/PostDetailPage.tsx

@@ -99,7 +99,7 @@ export default ({ user }: Props) => {
                   {post.viewed ? '閲覧済' : '未閲覧'}
                 </Button>
                 <TabGroup>
-                  {(['admin', 'member'].some (r => r === user.role) && editing) && (
+                  {(['admin', 'member'].some (r => r === user?.role) && editing) && (
                       <Tab name="編輯">
                         <PostEditForm post={post}
                                       onSave={newPost => {