Fix warning if the encoding retrieved from external headers is invalid

Also fixed the regex to support this failing header: charset="utf-8"\r\n"

1 files changed, 1 insertions, 1 deletions

diff --git a/application/front/controller/admin/ManageShaareController.php b/application/front/controller/admin/ManageShaareController.php
index ca2da9b5..ffb0dae4 100644
--- a/application/front/controller/admin/ManageShaareController.php
+++ b/application/front/controller/admin/ManageShaareController.php
@@ -69,7 +69,7 @@ class ManageShaareController extends ShaarliAdminController
                         $retrieveDescription
                     )
                 );
-                if (! empty($title) && strtolower($charset) !== 'utf-8') {
+                if (! empty($title) && strtolower($charset) !== 'utf-8' && mb_check_encoding($charset)) {
                     $title = mb_convert_encoding($title, 'utf-8', $charset);
                 }
             }