Method setHeader

packages/engine.io/lib/userver.ts:310–318

(key, value)

  }

  public setHeader(key, value) {
    if (Array.isArray(value)) {
      value.forEach((val) => {
        this.writeHeader(key, val);
      });
    } else {
      this.writeHeader(key, value);
    }
  }

  public removeHeader() {
    // FIXME: not implemented