diff --git a/apps/files_external/controller/userglobalstoragescontroller.php b/apps/files_external/controller/userglobalstoragescontroller.php
index 5031d3c46b..6b39b3dc92 100644
--- a/apps/files_external/controller/userglobalstoragescontroller.php
+++ b/apps/files_external/controller/userglobalstoragescontroller.php
@@ -23,7 +23,6 @@ namespace OCA\Files_External\Controller;
 
 use OCA\Files_External\Lib\Auth\AuthMechanism;
 use OCA\Files_External\Lib\Auth\IUserProvided;
-use OCA\Files_External\Lib\Auth\Password\UserProvided;
 use OCA\Files_External\Lib\InsufficientDataForMeaningfulAnswerException;
 use \OCP\IRequest;
 use \OCP\IL10N;
@@ -186,11 +185,11 @@ class UserGlobalStoragesController extends StoragesController {
 		$storage->setBackendOptions([]);
 		$storage->setMountOptions([]);
 
-		if ($storage->getAuthMechanism() instanceof UserProvided) {
+		if ($storage->getAuthMechanism() instanceof IUserProvided) {
 			try {
 				$storage->getAuthMechanism()->manipulateStorageConfig($storage, $this->userSession->getUser());
 			} catch (InsufficientDataForMeaningfulAnswerException $e) {
-
+				// not configured yet
 			}
 		}
 	}
diff --git a/apps/files_external/js/settings.js b/apps/files_external/js/settings.js
index 94d0fc2f5a..ccb1e858fa 100644
--- a/apps/files_external/js/settings.js
+++ b/apps/files_external/js/settings.js
@@ -206,6 +206,12 @@ StorageConfig.Status = {
 	ERROR: 1,
 	INDETERMINATE: 2
 };
+StorageConfig.Visibility = {
+	NONE: 0,
+	PERSONAL: 1,
+	ADMIN: 2,
+	DEFAULT: 3
+};
 /**
  * @memberof OCA.External.Settings
  */
@@ -809,7 +815,7 @@ MountConfigListView.prototype = _.extend({
 		$tr.find('.backend').data('identifier', backend.identifier);
 
 		var selectAuthMechanism = $('<select class="selectAuthMechanism"></select>');
-		var neededVisibility = (this._isPersonal) ? 1 : 2;
+		var neededVisibility = (this._isPersonal) ? StorageConfig.Visibility.PERSONAL : StorageConfig.Visibility.ADMIN;
 		$.each(this._allAuthMechanisms, function(authIdentifier, authMechanism) {
 			if (backend.authSchemes[authMechanism.scheme] && (authMechanism.visibility & neededVisibility)) {
 				selectAuthMechanism.append(
@@ -887,7 +893,6 @@ MountConfigListView.prototype = _.extend({
 					var onCompletion = jQuery.Deferred();
 					$.each(result, function(i, storageParams) {
 						var storageConfig;
-						console.log(storageParams);
 						var isUserGlobal = storageParams.type === 'system' && self._isPersonal;
 						storageParams.mountPoint = storageParams.mountPoint.substr(1); // trim leading slash
 						if (isUserGlobal) {
@@ -970,7 +975,7 @@ MountConfigListView.prototype = _.extend({
 		var newElement;
 
 		var trimmedPlaceholder = placeholder;
-		var flags = ['@', '*', '!', '#', '&'];
+		var flags = ['@', '*', '!', '#', '&']; // used to determine what kind of parameter
 		while(flags.indexOf(trimmedPlaceholder[0]) !== -1) {
 			trimmedPlaceholder = trimmedPlaceholder.substr(1);
 		}
diff --git a/apps/files_external/lib/failedcache.php b/apps/files_external/lib/failedcache.php
index e646e4fe67..9e24c12f4b 100644
--- a/apps/files_external/lib/failedcache.php
+++ b/apps/files_external/lib/failedcache.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * @author Robin McCorkell <robin@mccorkell.me.uk>
+ * @author Robin Appelman <icewind@owncloud.com>
  *
  * @copyright Copyright (c) 2016, ownCloud, Inc.
  * @license AGPL-3.0