Share links copied from the Share modal were built with
window.location.origin, producing 127.0.0.1 URLs that remote
viewers could never reach.
- Bind Flask to 0.0.0.0 in gdpr_scanner.py (--host default),
m365_launcher.py, and build_gdpr.py so the server is reachable
on the local network. Internal loopback URLs (urllib exports,
webview window, port probe) intentionally keep 127.0.0.1.
- Add /api/local_ip endpoint: UDP probe to 8.8.8.8 discovers the
active LAN IP without sending real traffic.
- Add _getShareBaseUrl() in viewer.js: fetches /api/local_ip and
substitutes the LAN IP; falls back to window.location.origin.
- createShareLink and copyTokenLink are now async and await
_getShareBaseUrl() before building the viewer URL.
- Update CLAUDE.md and static/js/CLAUDE.md with the new invariants.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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