Chrome issue in Scada-Vis

[DarthPaul]

Hi

In Google Chrome, visualisation is not responding. 

I have a setpoint adjustment, +/- 3 degree 
Clicking + and - seems to work, value changes in Vis. But looking at object, nothing happens. 

To check it out i opened http: and https: AND using https: this works. object is send on BUS
Further
Internet explorer works
IOS Safari works
Google Chrome (https works
AND even Google Chrome http, but Incognito - mode works

Opening all WEB-explorers I see they all update simultaneously, even Chrome updates when clicking other WEB's
only Chrome - normal Http: is unresponsive, when clicking

Any idea what this could be?