PubNub backfill issue

backfill-problem.js

var pubnub = PUBNUB.init({
  publish_key   : 'pub-c-your-key',
  subscribe_key : 'sub-c-your-key',
});

/*---- setup - paste in console a few times to put some messages in A */

pubnub.publish({
 channel:'A',
 message:'testing-' + Math.random()
})


/*---- 1. subscribing to 'A' with backfill works */

pubnub.subscribe({
  channel:'A',
  callback: function(m){console.log("A>",m)},
  backfill:true
})


/*---- 2. subscribing to 'A' with backfill, then 'B' without fails (cancelled xhr in console) */

pubnub.subscribe({
  channel:'A',
  callback: function(m){console.log("A>",m)},
  backfill:true
})

pubnub.subscribe({
  channel:'B',
  callback: function(m){console.log("B>",m)},
  backfill:false
})

(note, I'm using multiplexed channels)

Hi @benfoxall What is the issue, it looks like it is working very well! 👍 You've got two subscribes with channel "A" which is okay. By subscribing to channel "B" you are invoking the SDK to shutdown the TCP socket and open a new one for channels "A" + "B".