Update temporary-auth.mdx

Author: kennyj42

src/content/docs/cloudflare-one/policies/access/temporary-auth.mdx

@@ -20,6 +20,8 @@ With Cloudflare Access, you can require that users obtain approval before they c
 
 Temporary authentication is now enabled for users who match this policy. You can optionally add a second **Allow** policy for users who should have persistent access. Be sure the policy order is set to allow persistent users through.
 
+Note: This is only supported for the Self-Hosted and SaaS Application types.
+
 ## Temporary authentication requests
 
 When a user accesses the application, they will be prompted to enter a purpose justification and submit an access request. The request is automatically emailed to approvers. Alternatively, the user can manually present the approval link to approvers.