Added clarification on the new way to achieve silent login

Author: wcabus

astro/src/content/docs/bff/fundamentals/session/management/index.md

@@ -28,7 +28,7 @@ builder.Services.AddBff(options =>
 };
 ```
 
-Starting with BFF v4, the BFF automatically wires up the management endpoints. If you disable this behavior (using `AutomaticallyRegisterBffMiddleware`, this is how you can map the management endpoints:
+Starting with BFF v4, the BFF automatically wires up the management endpoints. If you disable this behavior (using `AutomaticallyRegisterBffMiddleware`), this is how you can map the management endpoints:
 
 ```csharp
 // Program.cs
@@ -51,10 +51,9 @@ The `UsePreprocessing` method adds all handling for multiple frontend support. A
 ``` csharp
 app.UseBffFrontendSelection();
 app.UseBffPathMapping();
-app.UseBffOpenIdCallbacks();~
+app.UseBffOpenIdCallbacks();
 ```
 
-
 `UseBffPostProcessing` adds all BFF management endpoints and handlers for proxying `index.html`. You can also map each endpoint individually by calling the various `MapBffManagementXxxEndpoint` methods, for example `endpoints.MapBffManagementLoginEndpoint()`.
 
 The following pages describe the default behavior of the management endpoints. See the [extensibility](/bff/extensibility) section for information about how to customize the behavior of the endpoints.

astro/src/content/docs/bff/fundamentals/session/management/silent-login.md

@@ -40,6 +40,16 @@ And then in JavaScript:
 document.querySelector('#bff-silent-login').src = '/bff/silent-login';
 ```
 
+:::tip
+In BFF v4, set the iframe's src attribute to the login endpoint instead using the query parameter `prompt=none`:
+
+```javascript
+document.querySelector('#bff-silent-login').src = '/bff/login?prompt=none';
+```
+
+See [OIDC Prompt support](/bff/fundamentals/session/oidc-prompts.md) for additional information.
+:::
+
 To receive the result, the application should handle the *message* event in the browser and look for the *data.isLoggedIn* property on the event object:
 
 ```javascript

astro/src/content/docs/bff/fundamentals/session/oidc-prompts.md

@@ -47,10 +47,16 @@ The `prompt` parameter can be used in situations where additional security is re
 
 ## Silent Login Deprecation (v3 to v4)
 
-When migrating from Duende BFF v3 to v4, you may notice deprecation warnings regarding the [silent login](/bff/fundamentals/session/management/silent-login.md) feature found at the user endpoint of `/silent-login`. You should discontinue use of the silent login feature and instead use the `prompt=none` parameter to achieve the same result.
-
-
-
+When migrating from Duende BFF v3 to v4, you may notice deprecation warnings regarding the [silent login](/bff/fundamentals/session/management/silent-login.md) 
+feature located at the management endpoint `/silent-login`. 
 
+To resolve the warning, update the silent login URL in your frontend applications to point to the login endpoint instead, including the `prompt=none`
+query parameter:
 
+```diff
+-const silentLoginPath = '/bff/silent-login';
++const silentLoginPath = '/bff/login?prompt=none';
+```
 
+By default, BFF v4 [automatically registers the management endpoints](/bff/fundamentals/session/management/index.md). In case you opted out of the automatic registration feature, 
+you may still need to explicitly call `app.MapBffManagementSilentLoginEndpoints()` if you are manually mapping the management endpoints.