OptionalbodyRequest body forwarded to the base fetch.
OptionalheadersHeader initializer forwarded to the base fetch.
OptionalmethodHTTP method. Defaults to the base fetch implementation's default.
Optionalredirect'follow' (default) follows redirects with a per-hop allowlist check. 'manual' and 'error' pass straight through to the base fetch — no hop happens here, so nothing escapes the initial check.
OptionalsignalCancellation signal forwarded to the base fetch.
RequestInit subset the guarded fetch understands. Members it does not model (cache, credentials, cf, duplex, …) pass through to the base fetch untouched via the index signature.