clone method
The clone() method of the Request interface creates a copy of the
current Request object.
Like the underlying ReadableStream.tee api,
the Request.body of a cloned Response
will signal backpressure at the rate of the faster consumer of the two
bodies,
and unread data is enqueued internally on the slower consumed body
without any limit or backpressure.
Beware when you construct a Request from a stream and then clone it.
clone() throws a TypeError if the request body has already been used.
In fact, the main reason clone() exists is to allow multiple uses of
body objects (when they are one-use only.)
If you intend to modify the request, you may prefer the Request constructor.
Implementation
external Request clone();