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-rw-r--r--inc/auth.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/inc/auth.php b/inc/auth.php
index 6c4636b2f..e44e837a7 100644
--- a/inc/auth.php
+++ b/inc/auth.php
@@ -325,7 +325,7 @@ function auth_browseruid() {
$uid = '';
$uid .= $_SERVER['HTTP_USER_AGENT'];
$uid .= $_SERVER['HTTP_ACCEPT_ENCODING'];
- $uid .= $_SERVER['HTTP_ACCEPT_CHARSET'];
+ $uid .= @$_SERVER['HTTP_ACCEPT_CHARSET'];
$uid .= substr($ip, 0, strpos($ip, '.'));
$uid = strtolower($uid);
return md5($uid);