Angular httpClient interceptor error handling

Question

after reading the documentation on angular about http client error handling, I still don\'t understand why I don\'t catch a 401 error from the server with the code below:

<

Answer 1

here some example I'm using:

export class ErrorHandlerInterceptor implements HttpInterceptor {

    intercept(
        request: HttpRequest,
        next: HttpHandler
    ): Observable> {
        const loadingHandlerService = this.inej.get(LoadingHandlerService);
        const errorHandlerService = this.inej.get(ErrorHandlerService);

        return next.handle(request)
            .pipe(
                catchError(err => {
                    loadingHandlerService.hideLoading();
                    if (err instanceof HttpErrorResponse) { errorHandlerService.handleError(err) }
                    return new Observable>();
                })
            );
    }

    constructor(private inej: Injector) { }
}