This was done when we switched to use SockJS: https://github.com/aerogear/aerogear-simple-push-server/commit/300e0d3466d3e58b719e37c8e17019990591081f
This was done when we switched to use SockJS:
https://github.com/aerogear/aerogear-simple-push-server/commit/300e0d3466d3e58b719e37c8e17019990591081f