The following information is derived from the plugin description.

This sample plugin shows how you can pass a cookie to the server as URL Parameter.

This can be helpful to handle problems with cross-site scripting. Of course the use of a crossdomain.xml is a better solution.

Note: This plugin is an authentication sample that can be used as a starting point for custom implementation. You can download and install the plugin as is, but it is recommended to to download, unpack and check the content first. The plugin sample includes the source code as well as README files with further information and instructions. The sample plugin is also included in the SDKs.