Add electron not support for stack trace unminification

Author: cy-moi

content/en/real_user_monitoring/guide/monitor-electron-applications-using-browser-sdk.md

@@ -24,12 +24,12 @@ To install the Datadog Browser SDK to support Electron apps:
 
 1. Set up and install [RUM Browser Monitoring][2] inside **every renderer process**, following the steps for CDN sync, CDN async, or npm.
 
-2. Set the `sessionPersistence` parameter to `"local-storage"` in the RUM initialization configuration of each renderer process, as shown below. 
+2. Set the `sessionPersistence` parameter to `"local-storage"` in the RUM initialization configuration of each renderer process, as shown below.
 
    **Note**: This setting allows Datadog to collect RUM data without relying on browser cookies.
-   
+
    - If you are targeting pages **available on the internet** (using the `https://` protocol), you **do not** need this parameter.
-   - if you are embedding pages **inside your application** (using the `file://` protocol), Datadog needs to store sessions in local storage, as cookies are not available. 
+   - if you are embedding pages **inside your application** (using the `file://` protocol), Datadog needs to store sessions in local storage, as cookies are not available.
 
    ```javascript
    datadogRum.init({
@@ -40,7 +40,7 @@ To install the Datadog Browser SDK to support Electron apps:
      sessionPersistence: "local-storage"
      });
    ```
- 
+
 3. Once you've configured the SDK correctly, your data populates the [RUM Explorer][4].
 
 ## Troubleshooting
@@ -50,6 +50,8 @@ The same-origin policy prevents tracking an application for the same session in
 
 This means that an application that uses Electron to embed a landing page, then later redirects the user to a website hosted on the Internet results in two sessions being created for that user - one for the embedded local files (`file://`) landing part of the application, and one for the remote part (`https://` files available on the internet).
 
+   **Note**: Unminified stack traces are not available when monitoring Electron applications that load embedded local files (i.e., when stack traces start with `file://`). To obtain unminified stack traces in this scenario, you must manually overwrite them using the [`beforeSend()` callback][2]. For further assistance, please contact [Datadog customer support][5].
+
 ### Short-lived sessions for instances with multiple windows at once
 An issue with local storage replication latency between windows can cause a short-lived session to be created (<1 second). To work around this, ensure multiple windows are created and initialized with a gap of more than 10 ms.
 
@@ -60,3 +62,4 @@ An issue with local storage replication latency between windows can cause a shor
 [2]: /real_user_monitoring/browser/setup/
 [3]: https://www.electronjs.org/docs/latest/tutorial/process-model#the-renderer-process
 [4]: /real_user_monitoring/explorer/
+[5]: https://www.datadoghq.com/support/