Address token integration with Spring Security's CsrfFilter

[fastnsilver]

It's not immediately apparent how to get RestGWT's FilterAwareDispatcher working seamlessly with Spring Security's CsrfFilter. On form submit, the response is always a 403. This is b/c the token is not initially set (either via meta tag or a hidden form field). How to bootstrap the token value (client-side) is what's presently mysterious.

Reading:

• http://stackoverflow.com/questions/20862299/with-spring-security-3-2-0-release-how-can-i-get-the-csrf-token-in-a-page-that/20960352
• https://groups.google.com/forum/#!topic/restygwt/C6F6VXx_A6A
• https://groups.google.com/forum/m/#!msg/restygwt/czMSJ_YI3Rs/O5VpkdoSuXgJ

[fastnsilver]

Added a variant of this config from Josh Long: https://gist.github.com/joshlong/0951f7b27749ef8c22a3 to get up and running. Still need to revisit secure config though.