- PORTAL_OPEN_LINKS now defaults OFF — /portal/open/* is an unauthenticated,
proxy-reachable session-minting path (and a linked project's open link grants
the whole client's scope), so it must be explicitly enabled in dev.
- Session cookie: enforce server-side expiry (check iat vs COOKIE_MAX_AGE — was
browser-only) and guard a non-dict signed body (was an uncaught AttributeError →
500, reachable if SECRET_KEY is the insecure default).
- Escape operator-set strings (location/rule/event names) before innerHTML +
Leaflet tooltips — they're client-facing, so a name with markup was stored XSS
in the client's browser. Global esc() helper applied at every injection point.
- WS _scrub_frame drops a non-JSON frame instead of forwarding it raw; /history
rows now whitelisted like the other scoped endpoints.
- Preview-client slug uses the full project id (an 8-char prefix could collide
two projects onto one client).
Verified: cookie reader (fresh/expired/non-dict/missing-iat) + open-links default
off; templates parse; scoped scrubbing intact.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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