import { Middleware } from '../middleware';
export interface SetMissingUrlProtocolOptions {
    defaultProtocol?: string;
}
/** If the hyperlink URL starts with `//` (like `//example.com`) it means the browser will in all case try to use the current protocol.
 *
 * This middleware adds the protocol to the URL to facilicate the next middlewares that in majority use `new URL()` that would fail without a protocol
 *
 * Reminder: it's not advised to use this because if the HTML file is saved locally and open with the `file://` protocol, the link would not work
 */
export declare function SetMissingUrlProtocolMiddleware(options?: SetMissingUrlProtocolOptions): Middleware;