Ahoy! Sorry, it's been a manic morning in the Elkin household. Cleaning day was moved to Monday. I was not prepared. I think browserlink is at least part of the problem, if not all of it - what seems to be happening is the first refresh happens part way through the gulp task. The backoffice loads but with only some of its JavaScript. The JavaScript that's there executes but gets stuck in a loop or overflow or something and tanks the browser. In the meantime the gulp task has finished but the browser's waiting for a ton of JS to execute before it finally refreshes and takes me to it. A few minutes later the browser does come back to life and take me to the backoffice with my changes.