export declare const DEFAULT_ALLOWED_CORS_ORIGINS: RegExp;
export declare function isAllowedRequestOrigin(origin: string | string[] | undefined): boolean;
export declare function isAllowedRequestHost(host: string | string[] | undefined): boolean;
export declare function isAllowedCorsRequest(origin: string | string[] | undefined, host: string | string[] | undefined): boolean;
export declare function isAllowedOpenInEditorToken(token: string | null, expectedToken: string): boolean;