On alpha versions of MiniProfiler v4, I used to collect client timings in production. I just disabled the UI when the request was not local to make sure the customers didn't see it.
I have upgraded to the stable version (4.0.133) but the client timings are no longer collected in production, it only works for local requests. I believe this is because of #239.
Am I correct? Is there a way to collect client timings in production without showing the UI to the visitors?