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fix: share Mixpanel identity across *.thegrid.ai subdomains#73
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CastilloLuis wants to merge 1 commit into
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fix: share Mixpanel identity across *.thegrid.ai subdomains#73CastilloLuis wants to merge 1 commit into
CastilloLuis wants to merge 1 commit into
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Switch Mixpanel persistence to a cross-subdomain cookie so agentsea (agentsea.thegrid.ai) shares one distinct_id with the app, landing, and manifesto properties (all on the same prod token). Previously the origin-scoped localStorage store minted a separate identity per subdomain, inflating unique user counts and breaking cross-property funnels/attribution. Set persistence: "cookie" + cross_subdomain_cookie: true (the latter is a no-op without the former). save_referrer: false is kept, so the first-touch source seeding remains the sole writer of $initial_referring_domain. Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
localStorageto a cross-subdomain cookie so agentsea (agentsea.thegrid.ai) shares a singledistinct_idwith the other*.thegrid.aiproperties (app, landing, manifesto) — all on the same prod token.persistence: "cookie"+cross_subdomain_cookie: true(the latter is a no-op without the former).save_referrer: false, so first-touch source seeding remains the sole writer of$initial_referring_domain(no OAuth/Stripe referrer-clobber risk here).Why
Previously each subdomain minted its own anonymous identity, inflating unique user counts and breaking cross-property funnels/retention/attribution. This matches the cross-subdomain cookie config already shipped in grid-ui, the landing page, and the manifesto (The-Grid PR #76).
Test plan
agentsea.thegrid.ai, confirm the Mixpanel cookie is scoped to.thegrid.ai(DevTools → Application → Cookies) and thedistinct_idmatches one carried over fromapp.thegrid.ai.distinct_id(no new identity).$initial_referring_domainreflects the real first-touch source, not an internal subdomain.Made with Cursor