When Elixir Repertoire Server is running, it is often executing JavaScript code on behalf of the user. It is important that this code is prevented from performing any dangerous operations, such as reading sensitive files or maliciously deleting information. In order to do this, the Server restricts the operations that can be performed through JavaScript, for example unrestricted access to files. By default the server restricts potentially unsafe operations. You can relax the constraints if necessary by modifying the security policy file. For more details please see the JavaScript chapter in the Elixir Report Designer Manual.