From 3fcceafc601444412ce65297ba4ce878ee77e450 Mon Sep 17 00:00:00 2001
From: sgiehl <stefan@matomo.org>
Date: Mon, 19 Jul 2021 10:24:00 +0200
Subject: [PATCH] Ensure userAgent is always of type string

---
 DeviceDetector.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/DeviceDetector.php b/DeviceDetector.php
index dd717c8f92..0e9ddf74bc 100644
--- a/DeviceDetector.php
+++ b/DeviceDetector.php
@@ -92,7 +92,7 @@ class DeviceDetector
      * Holds the useragent that should be parsed
      * @var string
      */
-    protected $userAgent;
+    protected $userAgent = '';
 
     /**
      * Holds the operating system data after parsing the UA