Method onResponseStart

deps/undici/undici.js:2955–2974

(statusCode, headers, resume, statusText)

        return this[kHandler].onResponseStarted?.();
      }
      onResponseStart(statusCode, headers, resume, statusText) {
        assert(!this.aborted);
        assert(!this.completed);
        if (channels.headers.hasSubscribers) {
          channels.headers.publish({ request: this, response: { statusCode, headers, statusText } });
        }
        const controller = this[kController];
        if (controller) {
          controller[kResume] = resume;
          controller.rawHeaders = headers;
        }
        const parsedHeaders = Array.isArray(headers) ? parseHeaders(headers) : headers;
        try {
          this[kHandler].onResponseStart?.(controller, statusCode, parsedHeaders, statusText);
          return !controller?.paused;
        } catch (err) {
          this.abort(err);
          return false;
        }
      }
      onResponseData(chunk) {
        assert(!this.aborted);
        assert(!this.completed);