> For AI agents: the complete documentation index is available at https://rslint.rs/llms.txt, the full documentation bundle is available at https://rslint.rs/llms-full.txt.

# no-invalid-fetch-options

[Added in v0.8.2](https://github.com/web-infra-dev/rslint/releases/tag/v0.8.2)
## Configuration

| Preset                              | Configured Value |
| ----------------------------------- | ---------------- |
| ✅ unicornPlugin.configs.recommended | `"error"`        |


```ts title=rslint.config.ts
import { defineConfig, unicornPlugin } from '@rslint/core';

export default defineConfig([
  unicornPlugin.configs.recommended,
  {
    rules: {
      'unicorn/no-invalid-fetch-options': 'error',
    },
  },
]);
```

## Rule Details

Disallows request bodies in `fetch()` and `new Request()` calls whose method is
`GET` or `HEAD`. The Fetch Standard throws a `TypeError` for these combinations.

Examples of **incorrect** code for this rule:

```javascript
fetch('/', { body: 'foo=bar' });

new Request('/', { method: 'HEAD', body: 'foo=bar' });
```

Examples of **correct** code for this rule:

```javascript
fetch('/', { method: 'POST', body: 'foo=bar' });

new Request('/', { method: 'HEAD' });
```

## Original Documentation

- [eslint-plugin-unicorn: no-invalid-fetch-options](https://github.com/sindresorhus/eslint-plugin-unicorn/blob/v73.0.0/docs/rules/no-invalid-fetch-options.md)
- [Source code](https://github.com/sindresorhus/eslint-plugin-unicorn/blob/v73.0.0/rules/no-invalid-fetch-options.js)