BentoPDF fetches /config.json at runtime. In our build/deploy flow this file
may be missing, causing noisy 404 errors in the browser console.
Create a minimal default config.json ({}), only when absent, during install
and update so custom configs are not overwritten.
LibreOffice WASM requires crossOriginIsolated + secure context.
LAN HTTP origins (http://192.168.x.x) are not trustworthy, so Office
conversion fails with DataCloneError on SharedArrayBuffer transfer.
- generate self-signed TLS cert (idempotent)
- add HTTPS server on :8443
- redirect HTTP :8080 to HTTPS :8443
- keep WASM gzip/mime handling
- update post-install URL hint to https://IP:8443
Word/Excel/PowerPoint to PDF conversion uses LibreOffice WASM which
requires SharedArrayBuffer. SharedArrayBuffer only works when the server
sends Cross-Origin-Opener-Policy: same-origin and
Cross-Origin-Embedder-Policy: require-corp headers.
The previous http-server setup did not send these headers, causing WASM
initialization to time out for office-format conversions.
Fix: replace http-server with nginx and configure COOP/COEP headers in the
nginx site config, matching the upstream Docker image's nginx.conf.
Also adds a one-time migration path in update_script for existing installs
running the old http-server service.
CanbiZ (MickLesk)