From 9bdba36e592e39f11d7412f1a18bdce9b7f18ede Mon Sep 17 00:00:00 2001
From: Sam Macbeth <sammacbeth@users.noreply.github.com>
Date: Mon, 22 May 2023 19:57:12 +0200
Subject: [PATCH] Allow constants.js to be used in non-extension environments
 (#1998)

---
 shared/data/constants.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/shared/data/constants.js b/shared/data/constants.js
index c8f9463047..5ec56e76cc 100644
--- a/shared/data/constants.js
+++ b/shared/data/constants.js
@@ -4,7 +4,10 @@ const browserInfo = parseUserAgentString()
 const trackerBlockingEndpointBase = 'https://staticcdn.duckduckgo.com/trackerblocking'
 
 function isMV3 () {
-    return chrome?.runtime.getManifest().manifest_version === 3
+    if (typeof chrome !== 'undefined') {
+        return chrome?.runtime.getManifest().manifest_version === 3
+    }
+    return false
 }
 
 function getConfigFileName () {