What a transport resolves with. The engine checks the shape (an integer status from 100
to 599, a headers object, a byte-array body) and rejects anything else as an
OparlNetworkError. headers may be Node's lower-case record, a record in any case, a
fetch Headers object or a Map; body a Buffer, any ArrayBuffer view (fetch's
Uint8Array, from any realm) or an ArrayBuffer.
The URL that answered, if the transport knows it (fetch's response.url). When it is
on another origin than the request's, the transport followed a redirect itself and the
engine fails the request (OparlNetworkError).
What a transport resolves with. The engine checks the shape (an integer
statusfrom 100 to 599, aheadersobject, a byte-arraybody) and rejects anything else as an OparlNetworkError.headersmay be Node's lower-case record, a record in any case, a fetchHeadersobject or aMap;bodya Buffer, any ArrayBuffer view (fetch's Uint8Array, from any realm) or an ArrayBuffer.