Finished my server & client cursor disco ;)
https://github.com/Plornt/CursorDiscoServer
https://github.com/Plornt/CursorDiscoClient
Demo: http://plornt.com/WebSockets/cursordiscoclient.html
Syncs users cursors, background and song.
All coded in Dart :D
Yeah its because my server is being DDOSed. Well, the server I am on that is.
Try direct connection: http://86.31.106.190/cursordiscoclient.html
The music seems to sporadically cut in and out. Nice though :)