[FAQ] eggjs/egg 自定义 favicon.ico

  /**
   * The option of `siteFile` middleware
   *
   * You can map some files using this options, it will response immdiately when matching.
   *
   * @member {Object} Config#siteFile - key is path, and value is url or buffer.
   * @property {String} cacheControl - files cache , default is public, max-age=2592000
   * @example
   * // specific app's favicon, => '/favicon.ico': 'https://eggjs.org/favicon.ico',
   * config.siteFile = {
   *   '/favicon.ico': 'https://eggjs.org/favicon.ico',
   * };
   */
  config.siteFile = {
    '/favicon.ico': fs.readFileSync(path.join(__dirname, 'favicon.png')),
    // default cache in 30 days
    cacheControl: 'public, max-age=2592000',
  };