fix: no display if empty post

src/app/post/components/post-list/post-list.component.ts

@@ -117,7 +117,7 @@ export class PostListComponent implements OnInit {
   // Transform excerpt post to have a custom author.
   private addAuthorToPost(post: Post): Post {
     post.author = post.excerpt;
-    post.excerpt = post.html.replace(/<[^>]*>/g, '');
+    if (post.html) post.excerpt = post.html.replace(/<[^>]*>/g, '');
     return post;
   }
 

src/app/post/services/post.service.ts

@@ -53,7 +53,7 @@ export class PostService {
 
   private addAuthorToPost(post: Post): Post {
     post.author = post.excerpt;
-    post.excerpt = post.html.replace(/<[^>]*>/g, '');
+    if (post.html) post.excerpt = post.html.replace(/<[^>]*>/g, '');
     return post;
   }
 }