The following is a known VCF 3.9 error that may appear on the SDDC Manager GUI:
“Got bad CSRF token; invalid CSRF token”
As per the VCF 3.9 Release Notes:
The “Got bad CSRF token; invalid CSRF token” error message appears
The options of the
csurf middleware are not configured properly. When you try to log in again after being logged out for almost two hours, the CSRF token error appears. This issue occurs because the old CSRF cookies have a conflict with the newly created session cookies.
Workaround: To reset cookies for the CSRF tokens, log out from the SDDC Dashboard and log in back again.