type read-only property of the
Response interface contains the type of the response. It can be one of the following:
basic: Normal, same origin response, with all headers exposed except "Set-Cookie".
cors: Response was received from a valid cross-origin request. Certain headers and the body may be accessed.
error: Network error. No useful information describing the error is available. The Response's status is 0, headers are empty and immutable. This is the type for a Response obtained from
opaque: Response for "no-cors" request to cross-origin resource. Severely restricted.
opaqueredirect: The fetch request was made with
redirect: "manual". The Response's status is 0, headers are empty, body is null and trailer is empty.
Note: An "error" Response never really gets exposed to script: such a response to a
fetch() would reject the promise.