diff --git a/Controller/QuestionnaireAnswersController.php b/Controller/QuestionnaireAnswersController.php
index 3f969d6..46ddc54 100644
--- a/Controller/QuestionnaireAnswersController.php
+++ b/Controller/QuestionnaireAnswersController.php
@@ -93,6 +93,9 @@ public function beforeFilter() {
 		// 親クラスのbeforeFilterを済ませる
 		parent::beforeFilter();
 
+		// CDNキャッシュを作成しない
+		$this->response->header('Pragma', 'no-cache');
+
 		// 現在の表示形態を調べておく
 		list($this->__displayType) = $this->QuestionnaireFrameSetting->getQuestionnaireFrameSetting(
 			Current::read('Frame.key')
@@ -178,11 +181,6 @@ protected function _viewGuard() {
 				!isset($this->request->data['QuestionnairePage']['page_sequence'])) {
 				// 認証キーコンポーネントお約束：
 				if ($quest['is_key_pass_use'] == QuestionnairesComponent::USES_USE) {
-					$this->AuthorizationKey->contentId = $quest['id'];
-					$this->AuthorizationKey->guard(
-						AuthorizationKeyComponent::OPERATION_EMBEDDING,
-						'Questionnaire',
-						$this->__questionnaire);
 					$this->setAction('key_auth');
 					return;
 				}
@@ -205,6 +203,15 @@ protected function _viewGuard() {
  * @return void
  */
 	public function key_auth() {
+		$this->AuthorizationKey->contentId = $this->__questionnaire['Questionnaire']['id'];
+		$this->AuthorizationKey->guard(
+			AuthorizationKeyComponent::OPERATION_EMBEDDING,
+			'Questionnaire',
+			$this->__questionnaire);
+		if ($this->request->is('ajax')) {
+			return;
+		}
+
 		$isKeyPassUse = $this->__questionnaire['Questionnaire']['is_key_pass_use'];
 		if ($isKeyPassUse != QuestionnairesComponent::USES_USE) {
 			$this->_redirectAnswerPage();
@@ -342,11 +349,15 @@ public function view() {
 			}
 		}
 		if (! ($this->request->is('post') && $nextPageSeq == $postPageSeq)) {
-			$summary = $this->QuestionnairesOwnAnswer->getProgressiveSummaryOfThisUser(
-				$questionnaireKey);
-			$setAnswers = $this->QuestionnaireAnswer->getProgressiveAnswerOfThisSummary(
-				$questionnaire,
-				$summary);
+			if (empty($this->request->params['requested'])) {
+				$summary = $this->QuestionnairesOwnAnswer->getProgressiveSummaryOfThisUser(
+					$questionnaireKey);
+				$setAnswers = $this->QuestionnaireAnswer->getProgressiveAnswerOfThisSummary(
+					$questionnaire,
+					$summary);
+			} else {
+				$setAnswers = [];
+			}
 			$this->set('answers', $setAnswers);
 			$this->request->data['QuestionnaireAnswer'] = $setAnswers;
 
diff --git a/Model/QuestionnaireAnswer.php b/Model/QuestionnaireAnswer.php
index c088642..6be4158 100644
--- a/Model/QuestionnaireAnswer.php
+++ b/Model/QuestionnaireAnswer.php
@@ -259,6 +259,13 @@ public function saveAnswer($data, $questionnaire, $summary) {
 				if (! $targetQuestion) {
 					throw new InternalErrorException(__d('net_commons', 'Internal Server Error'));
 				}
+
+				//HACK: 作りが悪いため、DELETE->INSERTで既存データを初期化してから登録する
+				$this->deleteAll([
+					$this->alias . '.questionnaire_answer_summary_id' => $summaryId,
+					$this->alias . '.questionnaire_question_key' => $targetQuestionKey,
+				], false);
+
 				// データ保存
 				// Matrixタイプの場合はanswerが配列になっているがsaveでかまわない
 				// saveMany中で１回しかValidateしなくてよい関数のためのフラグ
diff --git a/View/QuestionnaireAnswers/key_auth.ctp b/View/QuestionnaireAnswers/key_auth.ctp
index 73687ba..4cb7d4e 100644
--- a/View/QuestionnaireAnswers/key_auth.ctp
+++ b/View/QuestionnaireAnswers/key_auth.ctp
@@ -8,8 +8,11 @@
  * @license http://www.netcommons.org/license.txt NetCommons License
  * @copyright Copyright 2014, NetCommons Project
  */
+echo $this->NetCommonsHtml->script(array(
+	'/authorization_keys/js/key_auth_init.js'
+));
 ?>
-<article>
+<article ng-controller="AuthorizationKey" ng-init="initialize('<?php echo h($postUrl); ?>')">
 	<?php echo $this->element('Questionnaires.Answers/answer_header'); ?>
 
 	<?php echo $this->element('Questionnaires.Answers/answer_test_mode_header'); ?>