I am unable to setup a portal between two towns. When clicking on the button, the graphic acknowledge it by having the button lowered, but then when I select a city in the map, nothing happen (I suppose a green line should appear between my actual city and the target city.

If I click a second time on the target city, the focus seems to be placed on it, but no line appear.
This happens with Chrome & IE9 alike, guess it's not a browser issue ?
Any idea ?