www/saml2/sp/initSLO.php: Fix logout when IdP doesn't have a SingleLogoutService endpoint.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2281 44740490-163a-0410-bde0-09ae8108e29a

www/saml2/sp/initSLO.php

@@ -30,6 +30,7 @@ try {
 	$idpMetadata = $metadata->getMetaDataConfig($idpEntityId, 'saml20-idp-remote');
 	$SLOendpoint = $idpMetadata->getDefaultEndpoint('SingleLogoutService', array(SAML2_Const::BINDING_HTTP_REDIRECT), NULL);
 	if ($SLOendpoint === NULL) {
+		$session->doLogout();
 		SimpleSAML_Logger::info('SAML2.0 - SP.initSLO: No supported SingleLogoutService endpoint in IdP.');
 		SimpleSAML_Utilities::redirect($returnTo);
 	}