Swift:URL会话共享。dataTask显示状态代码304=200？

Question

我正在请求如下所示的 JSON-API：

     var request = URLRequest(url: url)
    request.httpMethod = "GET"
    request.addValue(CredentialsProvider.shared.credentials, forHTTPHeaderField: "Authorization")

    let task = URLSession.shared.dataTask(with: request as URLRequest) { data, response, error in
        guard let data = data, let _ = response, error == nil else {
            return
        }

        let response1 = response as! HTTPURLResponse
        print(response1.statusCode) // 200 instead of 304
    }

当服务器进行缓存时(我通过CharlesProxy验证了这一点),我希望状态代码是304，但是记录的是200——有没有办法获得“真正的”状态代码？

Answer 1

将缓存策略设置为 .reload签名缓存数据对我有用。

请求.cache策略 = .reload签名缓存数据