No PTZ. The other thing you can try is from the Chrome store they have their own app.
https://chrome.google.com/webstore/detail/nacl-web-plug-in/pbdcmagkbhnjpjlnpibbmggikpedpilc?utm_source=chrome-app-launcher-info-dialog
Try that if you haven't. I don't care for it, but I also have been able...