Hello again Svetlina,
You really have drawn the short straw today, haven't you? :-)
I've just retried this and I understand the point you're making about the particular purpose of this particular demo, but I'm a little concerned that the ToolTip doesn't appear to be working at all in Chrome when the property in question is false.
I know you said you couldn't reproduce the problem but a look at this video
should demonstrate the issue as I am seeing it.