whatwg/fetch resource

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

2250 stars · 401 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

The WHATWG Fetch Standard, a living specification that defines requests, responses, and the fetching process across the web platform, including the fetch() JavaScript API and CORS protocol. It is maintained as an HTML source document (fetch.bs) with tests in web-platform-tests.

Use cases

• understand how fetch() and CORS work in browsers
• look up redirect and cross-origin fetching semantics
• implement fetch in a new browser engine or runtime
• check how service workers interact with requests and responses
• reference CSP and Fetch Metadata integration rules
• contribute fixes or new features to the web fetching spec

When to choose

• you need the authoritative, normative definition of fetching behavior on the web platform
• you are implementing fetch() in a browser, runtime, or polyfill
• you want to propose or review changes to web fetching semantics

When to avoid

• you want a ready-to-use HTTP client library for your application
• you need tutorials or beginner documentation rather than a formal specification
• you are looking for Node.js-specific fetch implementation details

Facets

learning-resource · maturity active

http-client web-framework developer-tools web-development apis documentation browser cross-platform specification whatwg living-standard fetch-api cors http web-platform standards web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="whatwg/fetch")