for k, v := range objInfo.Metadata {
			oi.UserDefined[k] = v[0]
		}
		ce, ok := oi.UserDefined[xhttp.ContentEncoding]
		if !ok {
			ce, ok = oi.UserDefined[strings.ToLower(xhttp.ContentEncoding)]
		}
		if ok {
			oi.ContentEncoding = ce
		}
		return tgt, oi, proxyResult{Proxy: true}
	}
	proxy.Err = perr
	return nil, oi, proxy
}