export declare const INVALID_CONFIGURATION_PREFIX = "Invalid configuration:";
export interface ValidateBaseUrlOptions {
    baseUrl: string;
    mainPort: number;
    explicit: boolean;
}
/**
 * Guards against CSS_BASE_URL drift: when it is explicitly set to a loopback
 * address whose port differs from the gateway port, nothing will serve that
 * address, so OIDC discovery/authorize URLs become unreachable and pods
 * recorded under the old authority are filtered out of the consent page.
 */
export declare function ensureTrailingSlash(url: string): string;
export declare function validateBaseUrl({ baseUrl, mainPort, explicit }: ValidateBaseUrlOptions): void;