if !hasCE && !hasContentType && http2bodyAllowedForStatus(rws.status) && len(p) > 0 {
			ctype = DetectContentType(p)
		}
		var date string
		if _, ok := rws.snapHeader["Date"]; !ok {
			// TODO(bradfitz): be faster here, like net/http? measure.
			date = rws.conn.srv.now().UTC().Format(TimeFormat)
		}

		for _, v := range rws.snapHeader["Trailer"] {
			http2foreachHeaderElement(v, rws.declareTrailer)
		}