Be sure to set the below to your notes.ini or the plugin won't run:

XPagesPreload=1
XPagesPreloadDB=websocket.nsf

xockets.io as of 3.0.2
-New Features include:

onlyText(e.g. msg.onlyText = true;) flag sends only the text portion of the message to the target recipient(s)
onlyData (e.g. msg.onlyData = true;) flag sends just the data portion of the message to the target recipient(s)
both of the above flags help to limit the payload size to the targets by removing message meta data
DSAPI plugin project for Visual Studio for a very specific use case handling certificate based authentication (windows only for now)

-Fixes:

fix reload scripts to included intervaled scripts
fixed null pointer in XocketsPhaseListener