Interface HttpRequest

Optional request body (already serialised).

Hard cap on the response body size in bytes; the request aborts if exceeded.

Always "manual" from the engine: a transport must not follow redirects. The engine follows them itself and decides per hop which headers go along (the base URL's Authorization and every defaultHeaders entry: same origin only). A fetch-based transport passes it on: fetch(url, { redirect }). One that ignores it sends those headers to the redirect target before the engine can see the redirect — a documented limitation the library cannot enforce; the engine only rejects the response afterwards.

Aborted when the engine's overall deadline (timeoutMs) passes. A transport should stop the request then (fetch(url, { signal })); the engine rejects at the deadline either way, and enforces maxResponseBytes on the body it gets back, so neither limit depends on it.

Per-request timeout in milliseconds.

Fully-qualified absolute URL.