writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
				return
			}

			wantSize := int64(-1)
			if actualSize >= 0 {
				info := ObjectInfo{Size: actualSize}
				wantSize = info.EncryptedSize()
			}

			// do not try to verify encrypted content/
			hashReader, err = hash.NewReader(ctx, reader, wantSize, "", "", actualSize)
			if err != nil {