/**
 * The origin of the current URL.
 *
 * Defaults to "http://y.com" in non-browser environments. If this
 * behavior is not desired, the implementation can be overwritten
 * by `overwriteGetUrlOrigin()`.
 *
 * @type {() => string}
 */
export declare let getUrlOrigin: () => string;
/**
 * Overwrite the getUrlOrigin function.
 *
 * Use this function in server environments to
 * define how the URL origin is resolved.
 *
 * @param {() => string} fn - The new implementation for `getUrlOrigin()`.
 */
export declare let overwriteGetUrlOrigin: (fn: () => string) => void;
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