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-rw-r--r--lib/lib_rss.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/lib_rss.php b/lib/lib_rss.php
index 560e5b256..cdd08719d 100644
--- a/lib/lib_rss.php
+++ b/lib/lib_rss.php
@@ -285,7 +285,7 @@ function uSecString() {
}
function invalidateHttpCache($username = '') {
- if (($username == '') || (!ctype_alnum($username))) {
+ if (!FreshRSS_user_Controller::checkUsername($username)) {
Minz_Session::_param('touch', uTimeString());
$username = Minz_Session::param('currentUser', '_');
}