Merge pull request #247563 from cachai2/updateAuth

allow cusotm signing

Author: prmerger-automator[bot]

articles/container-apps/authentication.md

@@ -54,7 +54,7 @@ This feature should be used with HTTPS only. Ensure `allowInsecure` is disabled
 
 You can configure your container app for authentication with or without restricting access to your site content and APIs. To restrict app access only to authenticated users, set its *Restrict access* setting to **Require authentication**. To authenticate but not restrict access, set its *Restrict access* setting to **Allow unauthenticated access**.
 
-Each container app issues its own unique cookie or token for authentication. A client cannot use the same cookie or token provided by one container app to authenticate with another container app, even within the same container app environment.
+By default, each container app issues its own unique cookie or token for authentication. You can also provide your own signing and encryption keys.
 
 ## Feature architecture