Postman Could not get any response

在使用postman时遇到的小问题，记录一下：

报错信息如下：

Could not get any response

There was an error connecting to https://xxxxxxxxxxxxx/uatservices/customer-api/user/verify/code/photo.

Why this might have happened:

• The server couldn't send a response:

  Ensure that the backend is working properly

• Self-signed SSL certificates are being blocked:

  Fix this by turning off 'SSL certificate verification' in Settings > General

• Proxy configured incorrectly

  Ensure that proxy is configured correctly in Settings > Proxy

• Request timeout:

  Change request timeout in Settings > General

我试了一下修改：

和

都没有能够成功；

后来我仔细检查，是Headers中的某个key多了个空格，把这个空格去掉后就正常了；