From 374c2b74ad18289e44870ab9f98c9130ee5d215c Mon Sep 17 00:00:00 2001
From: Shizun Ge <shizunge@gmail.com>
Date: Sat, 11 Feb 2023 01:06:16 -0800
Subject: [PATCH] report unknow location for local ip

---
 geoip.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/geoip.go b/geoip.go
index 469a54f..3e69117 100644
--- a/geoip.go
+++ b/geoip.go
@@ -133,8 +133,10 @@ func geohashAndLocationFromMaxMindDb(address string) (string, string, string, er
 			latitude = loc.Latitude
 			longitude = loc.Longitude
 		} else {
-			// For debugging, adding the iso to the country name.
-			countryName = countryName + " (" + iso + ")"
+			if iso != "" {
+				// For debugging, adding the iso to the country name.
+				countryName = countryName + " (" + iso + ")"
+			}
 		}
 	}
 	gh := geohash.EncodeAuto(latitude, longitude)