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Added Iframe Limitations #9741

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Added Iframe Limitations #9741

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18 changes: 18 additions & 0 deletions content/en/docs/deployment/general/running-in-iframe.md
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Expand Up @@ -23,3 +23,21 @@ Most browsers have additional security to ensure that iframes are only allowed w
When running your app in Mendix Cloud, you can set the SameSite cookie through a custom runtime setting as explained in the [Running Your App in an Iframe](/developerportal/deploy/environments-details/#iframe) section of *Environment Details*.

If your app is deployed outside Mendix Cloud (on premises, for example), then you will need to configure your webserver to set the SameSite cookie to the correct value.

## Limitations

### Runtime Dependency

Even when embedded, the web client must still communicate with the Mendix runtime to initiate sessions, execute microflows, and interact with data. Mendix cannot function as a standalone client-only solution directly integrating with third-party services.

### Cross-Application Communication

Mendix does not support native messaging between the embedded application and the host application or other iframed applications. Any such communication must be implemented manually using custom JavaScript.

### Authentication Isolation

Mendix applications embedded in iframes do not inherit the session or user credentials from the host application. To enable shared authentication, a secure custom mechanism, such as JWT-based authentication, must be implemented.

### Content Security Policy (CSP) Requirements

If the host application enforces a Content Security Policy, it must be configured to explicitly allow loading frames and scripts from the Mendix application’s URL.