gistfile1.js

//Cross-Origin Resource Sharing unavailable from file://
if(window.location.protocol !== 'file:'){
	if(window.location.protocol === 'chrome-extension:') {
		$.ajax({
			url: 'http://www.geoplugin.net/json.gp',
			success: function(result) {
				var geoplugin = JSON.parse(result.replace(/^[^\{]+/, '').replace(/\);?$/, ''));
				countryCode = geoplugin.geoplugin_countryCode;
			}
		});
	}else {
		$.ajax({
			url: 'http://www.geoplugin.net/json.gp',
			dataType: 'jsonp',
			jsonp: 'jsoncallback',
			success: function(result) {
				countryCode = result.geoplugin_countryCode;
				window.countryCode = countryCode;
			}
		});
	}
}