You can customize whether to "autoCloseEntireSession" or not!

When room initiator leaves; you can enforce auto-closing of the entire
session. By default: `autoCloseEntireSession` is `false`:

connection.autoCloseEntireSession = true;

// or
new RTCMultiConnection('session-id', {
autoCloseEntireSession: true
});

// for DataChannel.js
channel.autoCloseEntireSession = true;

// or
new DataChannel('channel-name', {
autoCloseEntireSession: true
});

**Note:** Only
[DataChannel.js](https://webrtc-experiment.appspot.com/DataChannel.js)
and
[RTCMultiConnection-v1.2.js](https://webrtc-experiment.appspot.com/RTCMultiConnection-v1.2.js)
updated.