Method onResponseEnd

deps/undici/undici.js:3000–3018

(trailers)

        return this[kHandler].onRequestUpgrade?.(controller, statusCode, parsedHeaders, socket);
      }
      onResponseEnd(trailers) {
        this.onFinally();
        assert(!this.aborted);
        assert(!this.completed);
        this.completed = true;
        if (channels.trailers.hasSubscribers) {
          channels.trailers.publish({ request: this, trailers });
        }
        const controller = this[kController];
        if (controller) {
          controller.rawTrailers = trailers;
        }
        const parsedTrailers = Array.isArray(trailers) ? parseHeaders(trailers) : trailers;
        try {
          return this[kHandler].onResponseEnd?.(controller, parsedTrailers);
        } catch (err) {
          this.onResponseError(err);
        }
      }
      onResponseError(error) {
        this.onFinally();
        if (channels.error.hasSubscribers) {