It seems this API is kind of “deprecated” although it still works for some IPs.
This is the answer I got from here:
- http://code.google.com/p/google-ajax-apis/issues/detail?id=586
The geolocation functionality in the Loader hasn’t been retired, per se. We stopped documenting it several years ago and have recommended the HTML-based solutions due to their improved accuracy, but the functionality itself has not been removed from the Loader at this time. Thanks!
So when location is not found for IP, google.loader.ClientLocation is null