The request for an image remains suspended with spring webflux functional

Question

i need to give back an image stored in mogodb with gridfs but every time I get the image, the request remains suspended. In particular, this happens with images over 40k. Actually i use spring data mongodb reactive 2.2.0.M2.

The code used is the following

MediaRepository.kt

fun getById(id: String): Mono<ReactiveGridFsResource> {
    return gridFsOperations.findFirst(Query(Criteria.where("_id").`is`(id)))
        .flatMap { file ->
            gridFsOperations.getResource(file)
        }
}

MediaHandler.kt

fun getById(request: ServerRequest): Mono<ServerResponse> {
    val id: String = request.pathVariable("id")

    return mediaRepository.getById(id)
        .flatMap { resource ->
            ServerResponse.ok()
                .header(CONTENT_TYPE, "image/jpeg")
                .body(BodyInserters.fromDataBuffers(resource.downloadStream))
        }
        .switchIfEmpty(ServerResponse.notFound().build())
}

Thank you in advance