/**
 * Mirrors the scheme rule coolhand-node's `BaseService` enforces on `baseUrl`:
 * https:// is always allowed; http:// only for localhost/127.0.0.1/[::1].
 */
export declare function isLoopbackHostname(hostname: string): boolean;
export declare function isAllowedBaseUrlScheme(url: URL): boolean;
//# sourceMappingURL=base-url.d.ts.map