图3此消息指示成功的请求，挂起的证书颁发。

Figure 3 This message indicates a successful request, pending certificate issuance.

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此循环可以继续，直到发出成功的请求或尝试完所有的服务为止。

This looping can continue until a successful request has been made or all services have been tried.

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然后，我们再查看请求的状态值，状态码为200或者304都代表这是一次成功的请求。

Then, we check the request status value. Both 200 or 304 represent a succsessful request.

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