postman请求 400 bad request

使用postman请求时400badrequest ，出现

<h1>;

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<p><b>Type</b> Status Report</p>

<p><b>Description</b> The server cannot or will not process the request due to something that is perceived to be a

client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).

</p>

发现postman隐藏的头里的

Host 和 User-Agent 没设置会出现这个问题