diff --git a/index.html b/index.html
index 4efa466..2d81b5d 100644
--- a/index.html
+++ b/index.html
@@ -99,8 +99,14 @@ function manualAnimate(selector="#biggu"){
 }
 
 // see https://biggu-backend-collab.glitch.me/ to insure steps are done correctly
-function shareLiveEvent(eventName, server='https://biggu-backend-collab.glitch.me/'){
-  if (eventName.length > 0) fetch(server+'/newevent/'+eventName)
+function shareLiveEvent(eventName, eventData, server='https://biggu-backend-collab.glitch.me/'){
+  if (!eventName) return
+  let data = {}
+  data.eventName = eventName
+  if (eventData) data.eventData = eventData
+  let playername = AFRAME.utils.getUrlParameter('playername')
+  if (playername) data.playername = playername
+  fetch(server+'/newevent/'+JSON.stringify(data))
 }
 // should then become a container hosted on benetou.fr
 
@@ -141,7 +147,7 @@ function checkExerciseCompletion(targetNumber=2){
 	} else {
 		document.getElementById("biggucontinu").play()
 		instructions.emit('failed', {counter:counter})
-		shareLiveEvent('failed'+' '+counter)
+		shareLiveEvent('failed', {counter:counter})
 		animateThenIdle(mainCharacter, 'bigguaction_yes')
 	// anims = [ "bigguaction_no", "Bigguaction_pl", "bigguaction_pr", "bigguaction_talk", "bigguaction_win", "bigguaction_win", "bigguaction_yes" ]
 	}
@@ -194,7 +200,8 @@ AFRAME.registerComponent('start-with-supervision', {
 
 	source.addEventListener('message', message => {
 	  console.log('Got', message);
-	  if (message.data == '"start-with-supervision"') startExercise()
+	  let json = JSON.parse(message.data)
+	  if (json && json.eventName == 'start-with-supervision') startExercise()
 	})
   }
 })