当会话过期时，django的禁止（403）响应，如何将其更改为未授权（401）

I am trying to upload a file in an application. I empty my browsing data or somehow end my session and then I hit upload. I select a file from my filesystem and I get a forbidden (403) error from Django's server. csrf.py's code get executed. I am trying to upload a file in an application.