Stop forcing Access-Control-Allow-Origin to $scheme://$host. This default broke Element (element.infinito.nexus) -> Synapse (matrix.infinito.nexus) CORS and blocked login. Now ACAO is only set when 'aca_origin' is provided; otherwise we defer to the upstream app (e.g., Synapse) to emit correct CORS headers. Also convert top comments to Jinja block comment.
Discussion & debugging details: https://chatgpt.com/share/68de2236-4aec-800f-adc5-d025922c8753
- Add reusable Nginx include: roles/sys-svc-proxy/templates/headers/access_control_allow.conf.j2
(dynamic ACAO/credentials/methods/headers via role vars)
- Set global 'Vary: Origin' in nginx.conf.j2 to prevent cache poisoning
- CSP: allow Simple Icons via connect-src when feature is enabled
- Front proxy: rename vars to lowercase + flush handlers after config deploy
- Desktop: gate & load Simple Icons role; inject brand logos when enabled
- Bluesky + Logout: replace inline CORS with centralized include
- Simpleicons: public CORS (ACAO='*', no credentials), keep GET/OPTIONS, allow headers
- Taiga: adjust canonical domain to taiga.kanban.{{ PRIMARY_DOMAIN }}
- LibreTranslate: remove unused images/versions keys
Fixes: https://open.project.infinito.nexus/projects/cymais/work_packages/342/activity
Discussion: https://chatgpt.com/share/68da5e27-ffd4-800f-91a3-0ef103058d44
