no-invalid-fetch-options

📝 Disallow invalid options in fetch() and new Request().

💼 This rule is enabled in the following configs: ✅ recommended, ☑️ unopinionated.

fetch() throws a TypeError when the method is GET or HEAD and a body is provided.

Examples

// ❌
const response = await fetch('/', {body: 'foo=bar'});

// ❌
const request = new Request('/', {body: 'foo=bar'});

// ✅
const response = await fetch('/', {method: 'HEAD'});

// ✅
const request = new Request('/', {method: 'HEAD'});

// ❌
const response = await fetch('/', {method: 'GET', body: 'foo=bar'});

// ✅
const response = await fetch('/', {method: 'POST', body: 'foo=bar'});

// ❌
const request = new Request('/', {method: 'GET', body: 'foo=bar'});

// ✅
const request = new Request('/', {method: 'POST', body: 'foo=bar'});