Behavior: Generates an HTML iframe representation of the specified media asset. If the asset is not found or an error occurs during retrieval, an HTML error page is returned instead of throwing an exception.

Authorization: No authorization required. This is a publicly accessible endpoint for embedded content.

Side Effects: None. This is a read-only operation.

Error Scenarios: If the asset ID is empty or null, a validation exception is thrown. If the asset cannot be found, a not-found exception is thrown. Any other errors are caught and an HTML error page is returned with the error message.