Allow uppercase letters in PHP sessionid format

Fixes shaarli/Shaarli#335 - Wrong login/password since v0.5.2

Regression introduced in 06b6660a7e8891c6e1c47815cf50ee5b2ef5f270

1 files changed, 1 insertions, 1 deletions

diff --git a/application/Utils.php b/application/Utils.php
index fa18f158..cb03f11c 100644..100755
--- a/application/Utils.php
+++ b/application/Utils.php
@@ -156,7 +156,7 @@ function is_session_id_valid($sessionId)
         return false;
     }
 
-    if (!preg_match('/^[a-z0-9]{2,32}$/', $sessionId)) {
+    if (!preg_match('/^[a-z0-9]{2,32}$/i', $sessionId)) {
         return false;
     }