For example, if the user name is: `admin` and the password is `admin`, the combination is a string: `admin:admin`, the base64 result is: `YWRtaW46YWRtaW4='`, then the HTTP request adds the `Authorization` header:
For example, if the user name is: `admin` and the password is `admin`, the combination is a string: `admin:admin`, the base64 result is: `YWRtaW46YWRtaW4=`, then the HTTP request adds the `Authorization` header: