如果为 true,则 Date 响应头将自动生成并在响应中发送(如果响应头中尚不存在)。 默认为 true

这应该仅在测试时才禁用,HTTP 响应需要 Date 响应头。

When true, the Date header will be automatically generated and sent in the response if it is not already present in the headers. Defaults to true.

This should only be disabled for testing; HTTP requires the Date header in responses.