VNC console page gets too slow when with Google Chrome

[Dongwon Cho]

I found out it gets too slow and hangs when I open the the instance's console page with Google Chrome browser. I thought there might be some network problem between my desktop and the Openstack servers but it was not. If I open the console page with Firefox, it really works well getting faster on the response.

root@mitaka-horizon:~# dpkg -l | egrep 'horizon|dashboard'
ii openstack-dashboard 2:9.0.0-0ubuntu2.16.04.1 all Django web interface for OpenStack
ii openstack-dashboard-ubuntu-theme 2:9.0.0-0ubuntu2.16.04.1 all Ubuntu theme for the OpenStack dashboard
ii python-django-horizon 2:9.0.0-0ubuntu2.16.04.1 all Django module providing web based interaction with OpenStack

dongwoncho:~$ dpkg -l | grep "chrome"
ii google-chrome-stable 51.0.2704.84-1 amd64 The web browser from Google

[Dongwon Cho (dongwoncho)]

I got this symptom on Juno release as well. It seems there was some change on Google chrome that is not compatible with Openstack horizon. I guess this report should be marked as invalided.

[Matthias Runge (mrunge)]

vnc console is provided by novnc, not by horizon.

[Andres Toomsalu (andres-active)]

Experiencing extreme slowness with horizon vnc console as well.
Mitaka and Chrome 54.0.2840.71. With Firefox no problems.

[sean redmond (sean-redmond1)]

I have reports from users of slowness and crashing:
Mitaka - Chrome Version 55.0.2883.87 m (64-bit)

[sean redmond (sean-redmond1)]

Seems using novnc 0.6.1 fixes the issue in my case