The option to remove a restriction that does not allow a replicator to accept cookies from a remote host unless the cookie domain exactly matches the domain of the sender. For instance, when the option is set to false (the default), and the remote host, “”, sends a cookie for the domain “”, the replicator will reject it. If the option is set true, however, the replicator will accept it. This is, in general, dangerous: a host might, for instance, set a cookie for the domain ".com". It is safe only when the replicator is connecting only to known hosts. The default value of this option is false: parent-domain cookies are not accepted