fix(#231): consolidate CORS to a single same-origin-default policy#236
fix(#231): consolidate CORS to a single same-origin-default policy#236husamql3 wants to merge 1 commit into
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- Remove the manual "*"-echoing CORS middleware; keep one mechanism - Configure hono/cors with an empty-by-default origin allowlist (ALLOWED_ORIGINS env, comma-separated) so cross-origin requests get no Access-Control-Allow-Origin header -> same-origin only - Prevents drive-by-localhost: any other browser tab can no longer issue cross-origin reads/edits/drops against the user's DB - Update server CORS tests to assert the new policy (no allow-origin for a cross-origin/no-origin request; methods/headers advertised on preflight)
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Summary
cors()and then a second middleware that hard-setAccess-Control-Allow-Origin: *on every response. Two mechanisms is a correctness hazard and the wildcard grants cross-origin access the app never needs (the SPA is served same-origin as the API).ALLOWED_ORIGINS— with no allowlist configured, no allow-origin header is emitted for cross-origin requests. Deployments serving the SPA from a different origin setALLOWED_ORIGINSto an explicit comma-separated list (never*).Testing
cd packages/server && bun run test→ 998 tests passbun run typecheck,bun run format,bun run build→ passCloses #231
Glossary
ALLOWED_ORIGINS