@loopback/docs/site/apidocs/rest.restmiddlewaregroups.cors.md

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---
lang: en
title: 'API docs: rest.restmiddlewaregroups.cors'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
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editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/rest
permalink: /doc/en/lb4/apidocs.rest.restmiddlewaregroups.cors.html
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[Home](./index.md) &gt; [@loopback/rest](./rest.md) &gt; [RestMiddlewareGroups](./rest.restmiddlewaregroups.md) &gt; [CORS](./rest.restmiddlewaregroups.cors.md)

## RestMiddlewareGroups.CORS variable

Enforce CORS

<b>Signature:</b>

```typescript
CORS = "cors"
```