This is very cool! I've spotted some edge cases after watching edits for a while. If the IP lookup fails the user's location is 'undefined' and they get placed

This is very cool! I've spotted some edge cases after watching edits for a while. If the IP lookup fails the user's location is 'undefined' and they get placed in the top left of the map, presumably at (0, 0). There's also a mismatch between supported location. Could not highlight country: undefined main.js:259:41 Could not highlight country: Guernsey