diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6da4321..22b9bf5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -37,7 +37,7 @@ jobs:
         NC3_BUILD_DIR: "/opt/nc3"
         NC3_DOCKER_DIR: "/opt/docker"
         NC3_GIT_URL: "git://github.com/NetCommons3/NetCommons3.git"
-        NC3_GIT_BRANCH: "master"
+        NC3_GIT_BRANCH: "availability"
         PLUGIN_BUILD_DIR: ${{ github.workspace }}
         PHP_VERSION: ${{ matrix.php }}
         MYSQL_VERSION: ${{ matrix.mysql }}
diff --git a/Controller/PagesController.php b/Controller/PagesController.php
index 8be6ac3..ce069b8 100644
--- a/Controller/PagesController.php
+++ b/Controller/PagesController.php
@@ -5,6 +5,8 @@
  * @copyright Copyright 2014, NetCommons Project
  * @author Kohei Teraguchi <kteraguchi@commonsnet.org>
  * @author Shohei Nakajima <nakajimashouhei@gmail.com>
+ * @author Wataru Nishimoto <watura@willbooster.com>
+ * @author Kazunori Sakamoto <exkazuu@willbooster.com>
  * @link http://www.netcommons.org NetCommons Project
  * @license http://www.netcommons.org/license.txt NetCommons License
  */
@@ -13,12 +15,15 @@
 App::uses('Space', 'Rooms.Model');
 App::uses('NetCommonsUrl', 'NetCommons.Utility');
 App::uses('CurrentLibPage', 'NetCommons.Lib/Current');
+App::uses('NetCommonsCDNCache', 'NetCommons.Utility');
 
 /**
  * ページ表示 Controller
  *
  * @author Kohei Teraguchi <kteraguchi@commonsnet.org>
  * @author Shohei Nakajima <nakajimashouhei@gmail.com>
+ * @author Wataru Nishimoto <watura@willbooster.com>
+ * @author Kazunori Sakamoto <exkazuu@willbooster.com>
  * @package NetCommons\Pages\Controller
  */
 class PagesController extends PagesAppController {
@@ -52,6 +57,7 @@ class PagesController extends PagesAppController {
  * @return void
  */
 	public function beforeFilter() {
+		$this->Auth->allow('clear');
 		//CurrentPage::__getPageConditionsでページ表示として扱う
 		if ($this->params['action'] === 'index') {
 			$this->request->params['pageView'] = true;
@@ -120,4 +126,15 @@ public function change_setting_mode() {
 		$this->redirect($redirectUrl);
 	}
 
+/**
+ * CDN Cache を削除する
+ *
+ * @return void
+ */
+	public function clear() {
+		$cdnCache = new NetCommonsCDNCache();
+		$cdnCache->invalidate();
+		$this->redirect('/');
+	}
+
 }
diff --git a/View/Layouts/default.ctp b/View/Layouts/default.ctp
index 6c12c2e..cab4cb5 100644
--- a/View/Layouts/default.ctp
+++ b/View/Layouts/default.ctp
@@ -4,6 +4,7 @@
  *
  * @author Noriko Arai <arai@nii.ac.jp>
  * @author Shohei Nakajima <nakajimashouhei@gmail.com>
+ * @author Kazunori Sakamoto <exkazuu@willbooster.com>
  * @link http://www.netcommons.org NetCommons Project
  * @license http://www.netcommons.org/license.txt NetCommons License
  * @copyright Copyright 2014, NetCommons Project
@@ -48,7 +49,9 @@ if (AuthComponent::user()) {
 
 		<?php echo $this->element('NetCommons.common_header'); ?>
 
-		<main id="nc-container" class="<?php echo $pageContainerCss; ?>" ng-init="hashChange()">
+		<main id="nc-container" class="<?php echo $pageContainerCss; ?>" ng-init="hashChange();
+			<?php echo $this->CDNCache->isCacheable() ? 'updateTokens();' : ''; ?> updateLikes();">
+
 			<?php echo $pageHeader; ?>
 
 			<div class="row">