Title: Clear Logout
Author: Ayesh Karunaratne
Published: <strong>2020年1月25日</strong>
Last modified: 2023年7月23日

---

プラグインを検索

![](https://ps.w.org/clear-logout/assets/banner-772x250.jpg?rev=2237972)

このプラグインは **WordPress の最新3回のメジャーリリースに対してテストされていま
せん**。もうメンテナンスやサポートがされていないかもしれず、最新バージョンの WordPress
で使用した場合は互換性の問題が発生する可能性があります。

![](https://ps.w.org/clear-logout/assets/icon-256x256.png?rev=2237972)

# Clear Logout

 作者: [Ayesh Karunaratne](https://profiles.wordpress.org/ayeshrajans/)

[ダウンロード](https://downloads.wordpress.org/plugin/clear-logout.1.4.zip)

 * [詳細](https://ja.wordpress.org/plugins/clear-logout/#description)
 * [レビュー](https://ja.wordpress.org/plugins/clear-logout/#reviews)
 *  [インストール](https://ja.wordpress.org/plugins/clear-logout/#installation)
 * [開発](https://ja.wordpress.org/plugins/clear-logout/#developers)

 [サポート](https://wordpress.org/support/plugin/clear-logout/)

## 説明

This plugin ensures that when users of your website (including site administrators),
the browsers are instructed to clear all residue such as cookies and caches to enhance
the security.

[`Clear-Site-Data` HTTP header](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Clear-Site-Data)
is sent when a user logs out, which supported browsers will react by removing all
existing cookies, cache, and other storage. It will **not** remove saved passwords,
permissions, adblocker rules, and other data that are supposed to be permanent.

This plugin prevents possible security vulnerabilities such as clicking the “Back”
button in the browser after logging out revealing the pages that should not have
been accessible after logging out. Furthermore, this cleans the browser cache, which
prevents accessing authenticated media assets (such as purchased images) from the
browser cache of a victim.

## インストール

 1. Upload the downloaded plugin directory to `/wp-content/plugins/` directory, or 
    install the plugin through the WordPress plugins screen directly.
 2. Activate the plugin from the ‘Plugins’ screen in WordPress.
 3. You are all set! There is nothing to configure. When users logout, the `Clear-Site-
    Data` header will be sent automatically.

## FAQ

### Will this plugin remove saved passwords?

No. This will clear all cookies associated with your WordPress site, but not the
permanent data such as passwords, permissions, etc.

### Which browsers support `Clear-Site-Data` header?

All mainstream browsers do. Google Chrome 61+, Firefox 63+, and their current mobile
browsers. As of now, Microsoft Edge (non-Chrome versions) does NOT support this 
header.

### Why does the WordPress core does not set this header by itself?

Clear-Site-Data header is a relatively new header. I will be working with WordPress
core team to get this into core. Until then, we have this plugin.

## 評価

このプラグインにはレビューがありません。

## 貢献者と開発者

Clear Logout はオープンソースソフトウェアです。以下の人々がこのプラグインに貢献し
ています。

貢献者

 *   [ Ayesh Karunaratne ](https://profiles.wordpress.org/ayeshrajans/)

[“Clear Logout” をあなたの言語に翻訳しましょう。](https://translate.wordpress.org/projects/wp-plugins/clear-logout)

### 開発に興味がありますか ?

[コードを閲覧](https://plugins.trac.wordpress.org/browser/clear-logout/)するか、
[SVN リポジトリ](https://plugins.svn.wordpress.org/clear-logout/)をチェックするか、
[開発ログ](https://plugins.trac.wordpress.org/log/clear-logout/)を [RSS](https://plugins.trac.wordpress.org/log/clear-logout/?limit=100&mode=stop_on_copy&format=rss)
で購読してみてください。

## 変更履歴

#### 1.0

 * Initial release.

#### 1.1

 * Update supported up-to version number.

#### 1.2

 * Update supported up-to version number.

#### 1.4

 * Requires PHP 7.1+
 * Tested upto WordPress 6.3

## メタ

 *  バージョン **1.4**
 *  最終更新日 **3年前**
 *  有効インストール数 **50+**
 *  WordPress バージョン ** 5.1またはそれ以降 **
 *  検証済み最新バージョン: **6.3.12**
 *  PHP バージョン ** 7.1またはそれ以降 **
 *  言語
 * [English (US)](https://wordpress.org/plugins/clear-logout/)
 * タグ
 * [authentication](https://ja.wordpress.org/plugins/tags/authentication/)[logout](https://ja.wordpress.org/plugins/tags/logout/)
   [password](https://ja.wordpress.org/plugins/tags/password/)[security](https://ja.wordpress.org/plugins/tags/security/)
 *  [詳細を表示](https://ja.wordpress.org/plugins/clear-logout/advanced/)

## 評価

レビューはまだ送信されていません。

[Your review](https://wordpress.org/support/plugin/clear-logout/reviews/#new-post)

[すべてのレビューを見る](https://wordpress.org/support/plugin/clear-logout/reviews/)

## 貢献者

 *   [ Ayesh Karunaratne ](https://profiles.wordpress.org/ayeshrajans/)

## サポート

意見や質問がありますか ?

 [サポートフォーラムを表示](https://wordpress.org/support/plugin/clear-logout/)