// Convert generic internal errors to bad requests.
				apiErr = APIError{
					Code:           "BadRequest",
					Description:    err.Error(),
					HTTPStatusCode: http.StatusBadRequest,
				}
			}
		}
		writeErrorResponse(ctx, w, apiErr, r.URL)
		return
	}

	w.Header()[xhttp.ETag] = []string{`"` + hex.EncodeToString(hreader.MD5Current()) + `"`}