/** The key of the configuration. e.g. * */
    String API_CORS_ALLOW_ORIGIN = "api.cors.allow.origin";

    /** The key of the configuration. e.g. GET, POST, OPTIONS, DELETE, PUT */
    String API_CORS_ALLOW_METHODS = "api.cors.allow.methods";

    /** The key of the configuration. e.g. 3600 */
    String API_CORS_MAX_AGE = "api.cors.max.age";