From c34b8cd1c288c9b1e7c3b3d47d09b434d839d4fa Mon Sep 17 00:00:00 2001
From: David Wheatley <hi@davwheat.dev>
Date: Mon, 20 Dec 2021 16:35:54 +0100
Subject: [PATCH] fix: `classes` function including empty strings

---
 js/src/forum/components/Post.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/js/src/forum/components/Post.js b/js/src/forum/components/Post.js
index b36b75c7f..1318e9b5c 100644
--- a/js/src/forum/components/Post.js
+++ b/js/src/forum/components/Post.js
@@ -124,7 +124,10 @@ export default class Post extends Component {
    * @returns {string[]}
    */
   classes(existing) {
-    let classes = (existing || '').split(' ').concat(['Post']);
+    const classes = (existing || '')
+      .split(' ')
+      .filter((x) => x.trim() !== '')
+      .concat(['Post']);
 
     const user = this.attrs.post.user();
     const discussion = this.attrs.post.discussion();