Covers getCsrfToken (cookie parsing, URL-decoding, server-side null),
withCsrf (header injection, immutability, no-op when absent),
makeCsrfFetch (method filtering, case-insensitivity, inner-vs-global),
and csrfFetch (regression guard: vi.stubGlobal is honoured at call time,
not bypassed by a module-level captured reference).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The previous `export const csrfFetch = makeCsrfFetch(fetch)` captured the
global fetch at module evaluation time. Tests that mock fetch via
`vi.stubGlobal('fetch', mockFetch)` set up their stub *after* module import,
so all calls through csrfFetch bypassed the mock — 21 browser tests saw 0
fetch calls.
Changing csrfFetch to a plain function means `fetch` is resolved from the
global scope at each call site, picking up whatever stub is in place at
call time. Production behaviour is identical; test isolation is restored.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Introduces `csrfFetch` (= `makeCsrfFetch(fetch)`) in cookies.ts as a
drop-in fetch replacement that auto-injects X-XSRF-TOKEN on POST/PUT/PATCH/DELETE.
Previously 8 call sites sent mutating requests without the CSRF header —
annotation resize, comment POST/PATCH/DELETE, Geschichte CRUD, Stammbaum
relationship creation, bulk-edit PATCH, and file upload — all would fail
with CSRF_TOKEN_MISSING if the backend's cookie-based protection triggered.
All 14 client-side mutating fetches now use csrfFetch; withCsrf/makeCsrfFetch
remain in the API for injectable-fetch use cases (e.g. useTranscriptionBlocks).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
