SInce the server move, the competitions map doesn't work with Google Chrome anymore, when I click on "Map" it only displays a blank area instead of the map. Is that normal ? It still works fine with Firefox, though. Edit: I'm using Linux Debian (wheezy), if it can help.

Good find. This is because we're loading Javascript from another domain that is not HTTPS. (We started forcing all of worldcubeassociation.org to go over HTTPS since the server move.) I've made a note, so we'll hopefully fix it soon (although it's not a priority).