infowindow doesn't works

The map is the globalmap on the main page: https://soundaround.me

I’m not seeing the issue, those are all working fine for me…

If I clicking on markers I just see loading image. And nothing more.
You can see screenshot: https://www.awesomescreenshot.com/image/280924/82afcf62e742f049d590ab170910ce76

That one loads loads after a few seconds when I click it:

https://www.dropbox.com/s/lwrtpivceyosw8h/Screenshot%202015-06-08%2020.23.03.png?dl=0

interesting… because I have another result.
ok. Sorry

There is probably a trick to reproducing the issue, a particular browser, internet connection, possibly even browser connection.