From 0fa5b9750db001f25bc9034a47b93c4a3846cae8 Mon Sep 17 00:00:00 2001
From: NGPixel <github@ngpixel.com>
Date: Sat, 3 Oct 2020 16:50:51 -0400
Subject: [PATCH] fix: handle missing extra field during page render

---
 server/controllers/common.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/server/controllers/common.js b/server/controllers/common.js
index bf67b519..03b931ef 100644
--- a/server/controllers/common.js
+++ b/server/controllers/common.js
@@ -493,6 +493,9 @@ router.get('/*', async (req, res, next) => {
           body: WIKI.config.theming.injectBody
         }
 
+        // Handle missing extra field
+        page.extra = page.extra || { css: '', js: '' }
+
         if (!_.isEmpty(page.extra.css)) {
           injectCode.css = `${injectCode.css}\n${page.extra.css}`
         }