JavaScript applications can be served directly from a Universal Messaging realm server, using a file plugin, or via a third party web server of your choice.

For performance and security, we strongly recommend that applications are served from an SSL-encrypted file plugin. You may however choose to serve applications from a non-encrypted file plugin. See the description of using JavaScript for HTTP/HTTPS delivery in the Developer Guide.

Most components of your JavaScript application can be served from any web server. A Universal Messaging File plugin is still required however, to serve certain parts of the JavaScript libraries. This is necessary to permit secure cross domain communication.