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leaflet fork for copy edit / bug fixes forked from leaflet.pub/leaflet
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TypeScript
12345678910111213141516171819202122232425262728import { MAIN_SITE_URL } from "src/utils/customDomain";import { receive_auth_callback_route, encryptCrossSiteToken,} from "src/crossSiteAuth";
export async function postAuthRedirect( finalUrl: string, authToken: string | null,): Promise<string> { let target = new URL(finalUrl); // Only the canonical origin — where the auth_token cookie was just set // first-party — can skip the handoff. Vercel preview deployments count as // main-site hosts elsewhere, but their cookies are host-only, so a login // completing on production must hand them the session like a custom domain. if (target.origin === new URL(MAIN_SITE_URL).origin) return finalUrl; // A dev server can't hand a session to a custom domain (it doesn't share // CROSS_SITE_AUTH_SECRET with production, which serves the callback), so // send the browser there without one rather than 401 it. if (process.env.NODE_ENV === "development") return finalUrl;
let token = await encryptCrossSiteToken({ redirect: finalUrl, auth_token: authToken, }); return `${target.origin}${receive_auth_callback_route}?token=${encodeURIComponent(token)}`;}