Function isValidStatusCode

lib/web/websocket/util.js:148–158

* @see https://datatracker.ietf.org/doc/html/rfc6455#section-7-4 * @param {number} code * @returns {boolean}

(code)

 * @returns {boolean}
 */
function isValidStatusCode (code) {
  if (code >= 1000 && code < 1015) {
    return (
      code !== 1004 && // reserved
      code !== 1005 && // "MUST NOT be set as a status code"
      code !== 1006 // "MUST NOT be set as a status code"
    )
  }

  return code >= 3000 && code <= 4999
}

/**
 * @see https://datatracker.ietf.org/doc/html/rfc6455#section-5.5