import { XHRBackend, BrowserXhr, ResponseOptions, XSRFStrategy, Request, XHRConnection } from '@angular/http';
import { Observable } from 'rxjs/Rx';
export interface IError {
    err: any;
    source: any;
}
export declare class AuthConnectionBackend extends XHRBackend {
    error$: Observable<IError>;
    private errorSource;
    constructor(_browserXhr: BrowserXhr, _baseResponseOptions: ResponseOptions, _xsrfStrategy: XSRFStrategy);
    createConnection(request: Request): XHRConnection;
}