async headers()

in next.config.ts [38:54]


  async headers() {
    const headers = [
      {
        key: "Content-Security-Policy",
        value: CSP,
      },
    ];

    if (!IS_DEV) {
      headers.push({
        key: "Strict-Transport-Security",
        value: "max-age=31536000; includeSubDomains; preload",
      });
    }

    return [{ source: "/(.*)", headers }];
  },