Don't stop auth process when remote response is 401 (#1723)

lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Lib/RESTProxy.pm

@@ -39,7 +39,7 @@ sub getUser {
         'Proxy push auth to ' . $self->conf->{proxyAuthService} );
     my $resp = $self->ua->post( $self->conf->{proxyAuthService},
         { user => $req->{user}, password => $req->data->{password} } );
-    unless ( $resp->is_success ) {
+    unless ( $resp->is_success or $resp->code == 401 ) {
         $self->logger->error(
             'Unable to query authentication service: ' . $resp->status_line );
         return PE_ERROR;