http3: add request to response (#3608)

http3/client.go

@@ -390,6 +390,7 @@ func (c *client) doRequest(req *http.Request, str quic.Stream, opt RoundTripOpt,
 		ProtoMajor: 3,
 		Header:     http.Header{},
 		TLS:        &connState,
+		Request:    req,
 	}
 	for _, hf := range hfs {
 		switch hf.Name {

http3/client_test.go

@@ -741,6 +741,7 @@ var _ = Describe("Client", func() {
 			Expect(rsp.Proto).To(Equal("HTTP/3.0"))
 			Expect(rsp.ProtoMajor).To(Equal(3))
 			Expect(rsp.StatusCode).To(Equal(418))
+			Expect(rsp.Request).ToNot(BeNil())
 		})
 
 		It("doesn't close the request stream, with DontCloseRequestStream set", func() {