There could be several add_header directives. These directives are inherited from the previous level if and only if there are no add_header directives defined on the current level.
So we should keep these in nginx.conf. Currently, the ones causing me problems are the following:
From the documentation:
So we should keep these in nginx.conf. Currently, the ones causing me problems are the following:
...and several in apps/drupal/microcache_fcgi.conf