From b7fdcdfb59bc74dc6bacb0c8f564f33d23431fb9 Mon Sep 17 00:00:00 2001
From: erosman <erosman@users.noreply.github.com>
Date: Mon, 28 Mar 2022 15:11:04 +0430
Subject: [PATCH] v2.50

---
 content/options.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/content/options.js b/content/options.js
index a095953..bb4fd72 100644
--- a/content/options.js
+++ b/content/options.js
@@ -225,7 +225,7 @@ class Script {
   }
 
   addTheme(dark) {
-    [0, 1].forEach(i => window.frames[i]?.document.body.classList.toggle('dark', dark));
+    [0, 1].forEach(i => window.frames[i]?.document?.body?.classList.toggle('dark', dark));
     const url =  `../lib/codemirror/theme/${this.theme}.css`;
     if (this.theme === 'default' || document.querySelector(`link[href="${url}"]`)) { // already added
       document.body.classList.toggle('dark', dark);