Method writeTo

cmd/cache-proxy/proxy.go:637–648

writeTo replays the captured origin response onto w. Any header the origin set that isn't a hop-by-hop is forwarded; status code and body follow.

(w http.ResponseWriter)

func isRetriableOriginFetchError(err error) bool {
	if err == nil {
		return false
	}
	var oe *originStatusError
	if errors.As(err, &oe) {
		switch oe.status {
		case http.StatusRequestTimeout,
			http.StatusTooManyRequests,
			http.StatusInternalServerError,
			http.StatusBadGateway,
			http.StatusServiceUnavailable,
			http.StatusGatewayTimeout:
			return true
		default:
			return false
		}