Added some comments

public_new/js/views/collaboration/share-event-listener.js

@@ -164,6 +164,8 @@ CoviewBridge.bindMessageEvent = function () {
 
 CollaborationFeature.didReceiveLoginResponseMessage = async function () {
   try {
+    // check device has camera and mic
+    // esp, in ios, ask the permission for usermedia in everytime it use.
     await navigator.mediaDevices.getUserMedia({ audio: true, video: true });
     if (
       globalUserInfo.collaborationType == COLLABORATION_TYPE.CAMERA &&
@@ -174,6 +176,7 @@ CollaborationFeature.didReceiveLoginResponseMessage = async function () {
       }, 100);
     }
   } catch (err) {
+    // if the user denied the permission, it goes back to chat room
     if (err.name == "NotAllowedError") {
       CoviewBridge.exitCollaboration();
       return;