---
title: HeadersInit
url: https://www.fastly.com/documentation/reference/compute/sdks/javascript/js-compute/globals/type.HeadersInit/
---

**Kind:** Type alias  
**Module:** [globals](https://www.fastly.com/documentation/reference/compute/sdks/javascript/js-compute/globals/)  
**Package:** @fastly/js-compute 4.0.1  
**Source:** https://github.com/fastly/js-compute-runtime/blob/70cf30af4e657879b2d1e7eafab880e39e3a3f7d/types/globals.d.ts#L2065

```javascript
type HeadersInit = Headers | string[][] | Record<string, string>
```

Alias for `Headers | Array<Array<string>> | Record<string, string>`.