**Root Cause:**
- Auth system was looking for 'keycloak-session' cookies
- But actual OIDC system uses 'nuxt-oidc-auth' cookies
- This caused authentication failures for file previews and other endpoints
**Files Updated:**
- server/utils/auth.ts: Updated to check 'nuxt-oidc-auth' cookie
- server/api/auth/session.ts: Updated cookie name references
- server/api/auth/logout.ts: Updated cookie deletion
- server/api/auth/keycloak/callback.ts: Updated cookie creation
**Result:**
- File previews should now work for authenticated users
- All authentication endpoints now use consistent cookie names
- Both x-tag headers and OIDC sessions work correctly
## **Fixed 404 Error:**
### **Issue:**
- Keycloak was redirecting to /auth/keycloak/callback
- But our server endpoint was at /api/auth/keycloak/callback
- This caused a 404 Page Not Found error
### **Solution:**
- Updated useCustomAuth.ts redirect URI to include /api prefix
- Updated server callback endpoint to match the new path
- Both client and server now use: /api/auth/keycloak/callback
### **Files Changed:**
- composables/useCustomAuth.ts - Updated login redirect URI
- server/api/auth/keycloak/callback.ts - Updated token exchange redirect URI
## **Result:**
Now when users click 'Login with SSO':
1. Redirect to Keycloak
2. Keycloak redirects back to /api/auth/keycloak/callback
3. Server handles the callback properly
4. User gets authenticated and redirected to dashboard
The 404 error should be resolved and SSO login should work!
Matt