@bee.js/node/lib/beeHive/headers.js

A JavaScript framework for making Node.js API´s

module.exports = function ({ next, app, configs = {} }) {
  app.use((req, res, next) => {
    if (!configs.headers) res.header("Access-Control-Allow-Origin", "*");

    for (const key in configs.headers || {}) {
      res.header(key, configs.headers[key]);
    }

    next();
  });

  // OPTIONS (preflight)
  app.options("*", (req, res) => {
    if (!configs.headers) res.header("Access-Control-Allow-Origin", "*");

    for (const key in configs.headers || {}) {
      res.header(key, configs.headers[key]);
    }

    return res.sendStatus(200);
  });

  next();
};