message: Only connect to pusher if current user can add to the channel
diff: @@ -47,9 +47,13 @@ export const ChannelContentsWithData: React.FC<Props> = WithIsSpiderRequesting<
  const { channel: clientChannel } = data
  const channel = { ...serverChannel, ...clientChannel }
  - const pusherChannel = setupPusherChannel(
  + let pusherChannel
  +
  + if (channel.can.add_to) {
  + pusherChannel = setupPusherChannel(
  `channel-${NODE_ENV}-${channel.id}`
  )
  + }
  return (
  <ChannelContents
  