guccounter/guce_referrer/guce_referrer_sig -- confirmed live on a
yahoo.com news article reached via Google News. Not caught by the
existing tracker list; these are Yahoo's own GUCE consent-flow
redirect params, distinct from Yandex's yclid already covered.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Strips fbclid/gclid/utm_*/msclkid/ttclid and other known ad-tracking
query params from the URL bar via history.replaceState -- no reload,
no network requests. Handles SPA navigation too (pushState/replaceState
wrapping, popstate/hashchange), since client-side routers often re-add
tracking params on route changes.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>