plugin/multiplex/client.js


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(function () {
  var multiplex = Reveal.getConfig().multiplex;
  var socketId = multiplex.id;
  var socket = io.connect(multiplex.url);

  socket.on(multiplex.id, function (data) {
    // ignore data from sockets that aren't ours
    if (data.socketId !== socketId) {
      return;
    }
    if (window.location.host === 'localhost:1947') return;

    Reveal.setState(data.state);
  });
}());