src/Service/RiderAPIHandler/CMBRiderAPIHandler.php

@@ -2213,6 +2213,10 @@ class CMBRiderAPIHandler implements RiderAPIHandlerInterface
 
     protected function getURLExtraImage(Request $req, $filename)
     {
+        // return null if blank filename
+        if (strlen(trim($filename)) <= 0)
+            return null;
+
         return $req->getScheme() . '://' . $req->getHttpHost() . $req->getBasePath() . '/uploads/jo_extra/' . $filename;
     }
 }