// Send whitespace and keep connection open
				if _, err := w.Write([]byte(" ")); err != nil {
					return
				}
				w.(http.Flusher).Flush()
			case hr := <-respCh:
				switch hr.apiErr {
				case noError:
					if started {
						if _, err := w.Write(hr.respBytes); err != nil {
							return
						}
						w.(http.Flusher).Flush()
					} else {
						writeSuccessResponseJSON(w, hr.respBytes)
					}

		if err != nil {
			return err
		}
		sameTarget, apiErr := validateReplicationDestination(ctx, bucket, newReplicationConfig, &validateReplicationDestinationOptions{CheckRemoteBucket: true})
		if apiErr != noError {
			return fmt.Errorf("bucket replication config validation error: %#v", apiErr)
		}
		err = newReplicationConfig.Validate(bucket, sameTarget)
		if err != nil {
			return err
		}