fix(clerk-js): Force SameSite=none for chips (#5775)

Co-authored-by: Copilot <[email protected]>

Author: jacekradko

.changeset/hungry-foxes-sell.md

@@ -0,0 +1,5 @@
+---
+'@clerk/clerk-js': patch
+---
+
+Forcing \_\_session cookie to have SameSite=none attribute in the CHIPS build variant

packages/clerk-js/src/core/auth/cookies/session.ts

@@ -29,9 +29,9 @@ export const createSessionCookie = (cookieSuffix: string): SessionCookieHandler
 
   const set = (token: string) => {
     const expires = addYears(Date.now(), 1);
-    const sameSite = inCrossOriginIframe() ? 'None' : 'Lax';
+    const sameSite = __BUILD_VARIANT_CHIPS__ ? 'None' : inCrossOriginIframe() ? 'None' : 'Lax';
     const secure = getSecureAttribute(sameSite);
-    const partitioned = __BUILD_VARIANT_CHIPS__ && secure && sameSite === 'None';
+    const partitioned = __BUILD_VARIANT_CHIPS__ && secure;
 
     // If setting Partitioned to true, remove the existing session cookies.
     // This is to avoid conflicts with the same cookie name without Partitioned attribute.