- bouncer: CookieConfig from auth.cookie.* (LoadCookieConfig validates domain,
same_site none without Secure, secure false in production), TokenCookie with
Max-Age = refresh window, ForgetTokenCookie, CookieRefreshHandler and
CookieLogoutHandler with an app-supplied writer
- surf: http.cors refuses credentials with a * origin and bad or PHP-delimited
patterns at boot, turns wildcard origins into anchored patterns, echoes the
exact origin and sends Vary: Origin on every dynamic CORS answer; the
non-credentialed * answer is unchanged
- smoke tests for the www -> api refresh and the refused wildcard config
- every OPTIONS on a CORS path: 204 with Cache-Control no-cache, private
- a preflight echoes the requested method (upper-cased) and headers when * allows any, with Vary and PHP's default Content-Type, as recorded from PHP
- README and the routing docs describe the answer
