Better checking for CC'd replies

index.php

@@ -1319,7 +1319,11 @@ HTML;
 				}
 
 				//	Check to see if the user has been specifically CC'd
+				if ( isset( $object["cc"] ) ) {
 					$reply = in_array( "https://{$server}/{$username}", $object["cc"] );
+				} else {
+					$reply = false;
+				}
 				
 				//	What sort of message is this?
 				"Create" == $type ? $verb = "wrote" : $verb = "updated";