session Id to distinguish participants without player name

index.html

@@ -98,11 +98,12 @@ function manualAnimate(selector="#biggu"){
 	)
 }
 
+let sessionId = self.crypto.randomUUID()
+
 // see https://biggu-backend-collab.glitch.me/ to insure steps are done correctly
 function shareLiveEvent(eventName, eventData, server='https://biggu-backend-collab.glitch.me/'){
   if (!eventName) return
-  let data = {}
-  data.eventName = eventName
+  let data = { eventName,  sessionId }
   if (eventData) data.eventData = eventData
   let playername = AFRAME.utils.getUrlParameter('playername')
   if (playername) data.playername = playername
@@ -197,6 +198,7 @@ AFRAME.registerComponent('start-with-supervision', {
 	const server='https://biggu-backend-collab.glitch.me'
 	// CORS enabled needed
 	const source = new EventSource(server+'/events');
+	shareLiveEvent('connected')
 
 	source.addEventListener('message', message => {
 	  console.log('Got', message);