#33522: Unexpected behaviour when logging in
-------------------------------------+-------------------------------------
               Reporter:  Michael    |          Owner:  nobody
                   Type:  Bug        |         Status:  new
              Component:             |        Version:  4.0
  contrib.auth                       |       Keywords:  authentication log
               Severity:  Normal     |  in CSRF token
           Triage Stage:             |      Has patch:  0
  Unreviewed                         |
    Needs documentation:  0          |    Needs tests:  0
Patch needs improvement:  0          |  Easy pickings:  0
                  UI/UX:  0          |
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 Say a user opens two tabs to the same site, both show the login page.

 The user logs in on Tab A, does some things, after a while changes to Tab
 B, sees the login page, and instictively clicks login (their details pre-
 populated due to auto fill). They will then get a surprising CSRF error.

 I thing this is because when they logged in on Tab A, it deleted the
 anonymous session, and replaced it with a new session, which means the
 CSRF token from Tab B fails.

 Would it not be better to not delete the anomyous session when one logs
 in, or upgrade the session (instead of deleting it)?

-- 
Ticket URL: <https://code.djangoproject.com/ticket/33522>
Django <https://code.djangoproject.com/>
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