Trim root zone indicator from server address (#97)

2022-07-11 23:16:15 -05:00
parent 1a873cb58a
commit bc97b0ecbf
6 changed files with 29 additions and 595 deletions
@@ -170,7 +170,9 @@ func (r *routesImpl) FindBackendForServerAddress(ctx context.Context, serverAddr

 	addressParts := strings.Split(serverAddress, "\x00")

-	address := strings.ToLower(addressParts[0])
+	address := strings.ToLower(
+		// trim the root zone indicator, see https://en.wikipedia.org/wiki/Fully_qualified_domain_name
+		strings.TrimSuffix(addressParts[0], "."))

 	if r.mappings != nil {
 		if mapping, exists := r.mappings[address]; exists {