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390: Allow same-origin iframe embedding for admin previews #418

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Merged
turegjorup merged 1 commit into from
Apr 30, 2026
Merged

390: Allow same-origin iframe embedding for admin previews #418

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2 changes: 2 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,8 @@ All notable changes to this project will be documented in this file.
- Switched image build pipeline to GHCR with multi-arch layer caching.
- Aligned the nginx image env-var contract: split `NGINX_FPM_SERVICE` and
`NGINX_FPM_PORT`, raised upload cap and trusted-proxy CIDR defaults.
- Allowed same-origin iframe embedding so the admin's screen/playlist
preview and fullscreen slide view work (#390).
- Image build now writes `public/release.json` so the client's
release-loader can fetch it. The same file is included in the GitHub
Release tarball.
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5 changes: 4 additions & 1 deletion infrastructure/nginx/etc/templates/default.conf.template
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Expand Up @@ -23,7 +23,10 @@ server {

# Security headers
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "DENY" always;
# frame-ancestors is the modern primary control; X-Frame-Options is
# defense-in-depth for pre-CSP-2 browsers (#390).
add_header Content-Security-Policy "frame-ancestors 'self'" always;
add_header X-Frame-Options "SAMEORIGIN" always;
add_header Referrer-Policy "strict-origin-when-cross-origin" always;

# Real IP from reverse proxy
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