freeCodeCamp/curriculum/challenges/chinese/06-information-security-and.../information-security-with-h.../disable-client-side-caching...

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---
id: 587d8249367417b2b2512c3e
title: Disable Client-Side Caching with helmet.noCache()
challengeType: 2
videoUrl: ''
localeTitle: 使用helmet.noCache禁用客户端缓存
---
## Description
<section id="description">提醒一下,这个项目是基于<a href="https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/">Glitch</a>的以下入门项目构建的,或者是从<a href="https://github.com/freeCodeCamp/boilerplate-infosec/">GitHub</a>克隆的。如果您要为您的网站发布更新,并且您希望用户始终下载较新的版本,您可以(尝试)在客户端的浏览器上禁用缓存。它在开发中也很有用。缓存具有性能优势,您将失去这些优势,因此只有在真正需要时才使用此选项。 </section>
## Instructions
<section id="instructions">
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: 应该正确安装helmet.noCache中间件
testString: 'getUserInput => $.get(getUserInput("url") + "/_api/app-info").then(data => { assert.include(data.appStack, "nocache"); assert.equal(data.headers["cache-control"], "no-store, no-cache, must-revalidate, proxy-revalidate"); }, xhr => { throw new Error(xhr.responseText); })'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>