Redirection loop in Login

[oseppala]

Possible loop in login.
https://plus.cs.aalto.fi/accounts/login/?next=/accounts/login/

Error log snippet below

Internal Server Error: /accounts/login/

ValueError at /accounts/login/
Redirection loop for authenticated user detected. Check that your LOGIN_REDIRECT_URL doesn't point to a login page.

Request Method: GET
Request URL: https://plus.cs.aalto.fi/accounts/login/?next=/accounts/login/
Django Version: 4.2.23
Python Executable: /usr/bin/uwsgi-core

[murhum1]

Not sure how this can happen in an 'organic' way - navigating to the page you linked while already logged does cause the error, but I can't figure out how this would happen without intentionally trying to cause it. Any tips would be appreciated - these errors do still appear every now and then.

[jkotimak]

How to reproduce: It is possible to press the login button in the header when on the login page

[murhum1]

That can be done, yes, but that alone does not cause the error. However, I was able to recreate this by pressing login twice (so the current url path becomes /accounts/login/?next=/accounts/login), logging in, and then navigating back with the browser.

I now have a fix for this in #1510.