cmtracker/config/packages/framework.yaml

# see https://symfony.com/doc/current/reference/configuration/framework.html
framework:
  secret: "%env(APP_SECRET)%"
  csrf_protection: true

  # Note that the session will be started ONLY if you read or write from it.
  session: true

  #esi: true
  #fragments: true

when@test:
  framework:
    test: true
    session:
      storage_factory_id: session.storage.factory.mock_file