diff --git a/src/api/auth/index.ts b/src/api/auth/index.ts
index 270071a..ac19a10 100644
--- a/src/api/auth/index.ts
+++ b/src/api/auth/index.ts
@@ -26,6 +26,10 @@ export const auth = betterAuth({
   },
   session: {
     modelName: "session",
+    cookieCache: {
+      enabled: true,
+      maxAge: 60 * 60 * 24 * 7, // 7 days
+    },
   },
 
   advanced: {
@@ -33,6 +37,7 @@ export const auth = betterAuth({
     crossSubDomainCookies: {
       enabled: false, // Not subdomains, different domains entirely
     },
+    cookieSameSite: "none", // CRITICAL: Allow cross-site cookies
   },
 
   emailAndPassword: {