Method onHeaders

github-actions/browserstack/set-browserstack-env.js:2046–2057

(statusCode, headers, resume, statusText)

          return (_b = (_a = this[kHandler]).onResponseStarted) == null ? void 0 : _b.call(_a);
        }
        onHeaders(statusCode, headers, resume, statusText) {
          assert(!this.aborted);
          assert(!this.completed);
          if (channels.headers.hasSubscribers) {
            channels.headers.publish({ request: this, response: { statusCode, headers, statusText } });
          }
          try {
            return this[kHandler].onHeaders(statusCode, headers, resume, statusText);
          } catch (err) {
            this.abort(err);
          }
        }
        onData(chunk) {
          assert(!this.aborted);
          assert(!this.completed);