diff --git a/public/js/page-controller/group-controller.js b/public/js/page-controller/group-controller.js
index be962aa..e5fcaf4 100644
--- a/public/js/page-controller/group-controller.js
+++ b/public/js/page-controller/group-controller.js
@@ -4,6 +4,7 @@ const DataIdCreator = require("../publish/dataid-creator");
 const QueryBuilder = require("../query-builder/query-builder");
 const QueryNode = require("../query-builder/query-node");
 const QueryTemplates = require("../query-builder/query-templates");
+const DatabusConstants = require("../utils/databus-constants");
 const DatabusUtils = require("../utils/databus-utils");
 const DatabusWebappUtils = require("../utils/databus-webapp-utils");
 const TabNavigation = require("../utils/tab-navigation");
@@ -143,7 +144,7 @@ function GroupPageController($scope, $http, $sce, $interval, $location, collecti
   $scope.fileSelector.config.columns.push({ field: 'compression', label: 'Compression', width: '6%' });
 
   $scope.groupNode = new QueryNode($scope.group.uri, 'databus:group');
-  $scope.groupNode.setFacet('http://purl.org/dc/terms/hasVersion', '$latest', true);
+  $scope.groupNode.setFacet('http://purl.org/dc/terms/hasVersion', DatabusConstants.FACET_LATEST_VERSION_VALUE, true);
 
   $scope.onFacetSettingsChanged = function () {
     $scope.fileSelector.query = QueryBuilder.build({
diff --git a/server/app/api/module.js b/server/app/api/module.js
index 6ac9f94..db24f13 100644
--- a/server/app/api/module.js
+++ b/server/app/api/module.js
@@ -1,3 +1,4 @@
+const getLinkedData = require('../common/get-linked-data.js');
 const ServerUtils = require('../common/utils/server-utils.js');
 var cors = require('cors');
 
@@ -18,5 +19,4 @@ module.exports = function (router, protector, locals, webdav) {
   });
   
 
-
 }
\ No newline at end of file
diff --git a/server/app/api/routes/account.js b/server/app/api/routes/account.js
index d6e127b..24033ad 100644
--- a/server/app/api/routes/account.js
+++ b/server/app/api/routes/account.js
@@ -21,6 +21,7 @@ const Constants = require('../../common/constants');
 const UriUtils = require('../../common/utils/uri-utils');
 const DatabusConstants = require('../../../../public/js/utils/databus-constants');
 const publishAccount = require('../lib/publish-account');
+var cors = require('cors');
 
 module.exports = function (router, protector) {
 
@@ -403,7 +404,7 @@ module.exports = function (router, protector) {
   });
 
   /* GET an account. */
-  router.get('/:account', ServerUtils.NOT_HTML_ACCEPTED, async function (req, res, next) {
+  router.get('/:account', ServerUtils.NOT_HTML_ACCEPTED, cors(), async function (req, res, next) {
 
     if (req.params.account.length < 4) {
       next('route');
diff --git a/server/app/api/routes/artifact.js b/server/app/api/routes/artifact.js
index 48747b3..c68aa82 100644
--- a/server/app/api/routes/artifact.js
+++ b/server/app/api/routes/artifact.js
@@ -10,6 +10,7 @@ const publishArtifact = require('../lib/publish-artifact');
 const defaultContext = require('../../common/res/context.jsonld');
 const getLinkedData = require("../../common/get-linked-data");
 const jsonld = require('jsonld');
+var cors = require('cors');
 
 const sparql = require("../../common/queries/sparql");
 
@@ -66,7 +67,7 @@ module.exports = function (router, protector) {
     }
   });
 
-  router.get('/:account/:group/:artifact', ServerUtils.NOT_HTML_ACCEPTED, async function (req, res, next) {
+  router.get('/:account/:group/:artifact', ServerUtils.NOT_HTML_ACCEPTED, cors(), async function (req, res, next) {
 
     if (req.params.account.length < 4) {
       next('route');
diff --git a/server/app/api/routes/collection.js b/server/app/api/routes/collection.js
index 59de9d9..0f93cd6 100644
--- a/server/app/api/routes/collection.js
+++ b/server/app/api/routes/collection.js
@@ -16,6 +16,7 @@ var defaultContext = require('./../../common/res/context.jsonld');
 const DatabusConstants = require('../../../../public/js/utils/databus-constants');
 const DatabusUtils = require('../../../../public/js/utils/databus-utils');
 const DatabusMessage = require('../../common/databus-message');
+var cors = require('cors');
 
 module.exports = function (router, protector) {
 
@@ -185,7 +186,7 @@ module.exports = function (router, protector) {
     }
   });
 
-  router.get('/:account/collections/:collection', ServerUtils.SPARQL_ACCEPTED, async function (req, res, next) {
+  router.get('/:account/collections/:collection', ServerUtils.SPARQL_ACCEPTED, cors(), async function (req, res, next) {
 
     sparql.collections.getCollectionQuery(req.params.account, req.params.collection).then(function (result) {
       if (result != null) {
@@ -199,7 +200,7 @@ module.exports = function (router, protector) {
     });
   });
 
-  router.get('/:account/collections/:collection', ServerUtils.NOT_HTML_ACCEPTED, function (req, res, next) {
+  router.get('/:account/collections/:collection', ServerUtils.NOT_HTML_ACCEPTED, cors(), function (req, res, next) {
 
     if (req.params.account.length < 4) {
       next('route');
diff --git a/server/app/api/routes/group.js b/server/app/api/routes/group.js
index 9db1133..93f963f 100644
--- a/server/app/api/routes/group.js
+++ b/server/app/api/routes/group.js
@@ -9,6 +9,7 @@ const publishGroup = require('../lib/publish-group');
 const jsonld = require('jsonld');
 const getLinkedData = require("../../common/get-linked-data");
 const defaultContext = require('../../common/res/context.jsonld');
+var cors = require('cors');
 
 const sparql = require("../../common/queries/sparql");
 
@@ -57,7 +58,7 @@ module.exports = function (router, protector) {
     }
   });
 
-  router.get('/:account/:group', ServerUtils.NOT_HTML_ACCEPTED, async function (req, res, next) {
+  router.get('/:account/:group', ServerUtils.NOT_HTML_ACCEPTED, cors(), async function (req, res, next) {
 
     if (req.params.account.length < 4) {
       next('route');
diff --git a/server/app/api/routes/version.js b/server/app/api/routes/version.js
index 28961d7..acc41ed 100644
--- a/server/app/api/routes/version.js
+++ b/server/app/api/routes/version.js
@@ -13,6 +13,8 @@ const getLinkedData = require('../../common/get-linked-data.js');
 const DatabusLogger = require('../../common/databus-logger.js');
 const JsonldUtils = require('../../../../public/js/utils/jsonld-utils.js');
 const jsonld = require('jsonld');
+var cors = require('cors');
+
 
 module.exports = function (router, protector) {
 
@@ -58,7 +60,7 @@ module.exports = function (router, protector) {
     }
   });
 
-  router.get('/:account/:group/:artifact/:version', ServerUtils.NOT_HTML_ACCEPTED, async function (req, res, next) {
+  router.get('/:account/:group/:artifact/:version', ServerUtils.NOT_HTML_ACCEPTED, cors(), async function (req, res, next) {
 
     if (req.params.account.length < 4) {
       next('route');