I just discovered latest chromium package from ubuntu does not record cookies for localhost anymore. So if you are testing redmine on http://localhost/
and try to log in, you get : Invalid form authenticity token. Anyway, that shows the problem you get might be related to cookies either blocked or with a wrong path, or even a wrong name. Please check which cookies are recorded in your browser for the domain you host redmine with. Regards, Jérémy.
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