/**
 * TODO: possibly add an allow-list for remotes
 */
export interface ValidURIOptions {
    /** allow data: uri (default true) */
    data: boolean;
    /** allow same-origin (default true) */
    same_origin: boolean;
    /** allow remote (default false) */
    remote: boolean;
}
/**
 * check if this resource is a valid URI. by default we only
 * allow data: and same-origin URIs, but you can override that
 * with a flag.
 *
 * this assumes we have a document (and location) so it should
 * only be called from browser context.
 */
export declare const ValidateURI: (resource: string, options?: Partial<ValidURIOptions>) => string | undefined;