---
id: 587d8248367417b2b2512c3b
title: Prevent IE from Opening Untrusted HTML with helmet.ieNoOpen()
challengeType: 2
videoUrl: ''
localeTitle: ''
---
## Description
undefined
## Instructions
undefined
## Tests
```yml
tests:
- text: ''
testString: 'getUserInput => $.get(getUserInput("url") + "/_api/app-info").then(data => { assert.include(data.appStack, "ienoopen"); assert.equal(data.headers["x-download-options"], "noopen"); }, xhr => { throw new Error(xhr.responseText); })'
```
## Challenge Seed
## Solution
```js
// solution required
```