Set SameSite=strict for session cookies I'm trying to figure out how to set the SameSite cookie attribute for Drupal 8 session cookies, but I can't find a solution.

I thought SessionConfiguration might give me enough options, but it seems not.

Where can I perform such magic?
Check this issue https://www.drupal.org/project/drupal/issues/3150614
You could set next parameters in you services.yml
parameters:
  session.storage.options:
    cookie_samesite: 'NONE'