diff --git a/core/js/dist/main.js b/core/js/dist/main.js
index ad7c4a8be0..faa2d5c10d 100644
Binary files a/core/js/dist/main.js and b/core/js/dist/main.js differ
diff --git a/core/js/dist/main.js.map b/core/js/dist/main.js.map
index 063ef13bb5..6d33bda9ed 100644
Binary files a/core/js/dist/main.js.map and b/core/js/dist/main.js.map differ
diff --git a/core/js/js.js b/core/js/js.js
index f5d7ac4561..d420a8667f 100644
--- a/core/js/js.js
+++ b/core/js/js.js
@@ -6,8 +6,6 @@ var oc_webroot;
 var oc_current_user = document.getElementsByTagName('head')[0].getAttribute('data-user');
 var oc_requesttoken = document.getElementsByTagName('head')[0].getAttribute('data-requesttoken');
 
-window.oc_config = window.oc_config || {};
-
 if (typeof oc_webroot === "undefined") {
 	oc_webroot = location.pathname;
 	var pos = oc_webroot.indexOf('/index.php/');
@@ -61,7 +59,6 @@ Object.assign(window.OC, {
 	 * @deprecated use {@link OC.getCurrentUser} instead
 	 */
 	currentUser:(typeof oc_current_user!=='undefined')?oc_current_user:false,
-	config: window.oc_config,
 	appConfig: window.oc_appconfig || {},
 	theme: window.oc_defaults || {},
 	coreApps:['', 'admin','log','core/search','settings','core','3rdparty'],
diff --git a/core/js/tests/specHelper.js b/core/js/tests/specHelper.js
index 5d4a7b81b5..04272161c8 100644
--- a/core/js/tests/specHelper.js
+++ b/core/js/tests/specHelper.js
@@ -93,7 +93,7 @@ window.oc_appswebroots = {
 	"files": window.oc_webroot + '/apps/files/',
 	"files_sharing": window.oc_webroot + '/apps/files_sharing/'
 };
-window.oc_config = {
+OC.config = {
 	session_lifetime: 600 * 1000,
 	session_keepalive: false,
 	blacklist_files_regex: '\.(part|filepart)$',
diff --git a/core/src/OC/config.js b/core/src/OC/config.js
new file mode 100644
index 0000000000..d1a3211cf6
--- /dev/null
+++ b/core/src/OC/config.js
@@ -0,0 +1,24 @@
+/*
+ * @copyright 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @author 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+const config = window._oc_config || {}
+
+export default config
diff --git a/core/src/OC/index.js b/core/src/OC/index.js
index 76b244adf3..789b5b22fa 100644
--- a/core/src/OC/index.js
+++ b/core/src/OC/index.js
@@ -22,6 +22,7 @@
 import Apps from './apps'
 import AppConfig from './appconfig'
 import Backbone from './backbone'
+import Config from './config'
 import ContactsMenu from './contactsmenu'
 import Dialogs from './dialogs'
 import EventSource from './eventsource'
@@ -40,6 +41,7 @@ export default {
 	AppConfig,
 	Backbone,
 	ContactsMenu,
+	config: Config,
 	dialogs: Dialogs,
 	EventSource,
 	L10N,
diff --git a/core/src/globals.js b/core/src/globals.js
index cbb26cfc2a..b84ef10d22 100644
--- a/core/src/globals.js
+++ b/core/src/globals.js
@@ -34,7 +34,10 @@ const deprecate = (func, funcName) => {
 	return newFunc
 }
 
-const setDeprecatedProp = (global, val, msg) =>
+const setDeprecatedProp = (global, val, msg) => {
+	if (window[global] !== undefined) {
+		delete window[global]
+	}
 	Object.defineProperty(window, global, {
 		get: () => {
 			if (msg) {
@@ -45,6 +48,7 @@ const setDeprecatedProp = (global, val, msg) =>
 			return val
 		}
 	})
+}
 
 import _ from 'underscore'
 import $ from 'jquery'
@@ -103,7 +107,8 @@ window['md5'] = md5
 window['moment'] = moment
 
 window['OC'] = OC
-setDeprecatedProp('OCDialogs', OC.dialogs, 'use OC.dialogs')
+setDeprecatedProp('oc_config', OC.config, 'use OC.config instead')
+setDeprecatedProp('OCDialogs', OC.dialogs, 'use OC.dialogs instead')
 window['OCP'] = OCP
 window['OCA'] = OCA
 window['escapeHTML'] = deprecate(escapeHTML, 'escapeHTML')
diff --git a/lib/private/Template/JSConfigHelper.php b/lib/private/Template/JSConfigHelper.php
index 26da8fcc3c..6ec92ef1cd 100644
--- a/lib/private/Template/JSConfigHelper.php
+++ b/lib/private/Template/JSConfigHelper.php
@@ -231,7 +231,7 @@ class JSConfigHelper {
 				(string)$this->l->t('Dec.')
 			]),
 			"firstDay" => json_encode($this->l->l('firstday', null)) ,
-			"oc_config" => json_encode([
+			"_oc_config" => json_encode([
 				'session_lifetime'	=> min($this->config->getSystemValue('session_lifetime', $this->iniWrapper->getNumeric('session.gc_maxlifetime')), $this->iniWrapper->getNumeric('session.gc_maxlifetime')),
 				'session_keepalive'	=> $this->config->getSystemValue('session_keepalive', true),
 				'version'			=> implode('.', \OCP\Util::getVersion()),