To be sure, you cannot reopen a closed window by clicking on the button? I thought with the button you can open a window when you want to.
Same here. It works on Chrome and Firefox (private window), but not on Firefox (normal window).
Some more information:
In WordPress I got (+ IDNA plugin): http://www.kapuściński.eu/
In browser’s address bar: http://www.kapuściński.eu/
= not showing charts
