The pipe character is not valid for the interface description, so don't consider it valid. ( | is not an "or" in regular expression character classes)

1 files changed, 1 insertions, 1 deletions

diff --git a/usr/local/www/diag_backup.php b/usr/local/www/diag_backup.php
index 2e9e8b2..882240f 100755
--- a/usr/local/www/diag_backup.php
+++ b/usr/local/www/diag_backup.php
@@ -86,7 +86,7 @@ function add_base_packages_menu_items() {
 }
 
 function remove_bad_chars($string) {
-	return preg_replace('/[^a-z|_|0-9]/i','',$string);
+	return preg_replace('/[^a-z_0-9]/i','',$string);
 }
 
 function check_and_returnif_section_exists($section) {