Save note on F5/quit

inc/catc.php

@@ -133,6 +133,7 @@ class CATC extends Main
 	}
 	
 	public function setNote($iCourseId, $asOps) {
+		if(is_string($asOps)) $asOps = json_decode($asOps, true);
 		$oNote = new Note($this->oDb, $this->oAuth->getUserId(), $iCourseId);
 		$sError = $oNote->setNote($asOps);
 		$bSuccess = ($sError=='');