Fix bestTry logic

conf/sower.toml

@@ -28,10 +28,10 @@ blocklist=[
     "*.atlassian.net", # atlassian
     "*.atlassian.com",
     "*.prod.public.atl-paas.net",
-	"*.cloudfront.net",
+    "*.cloudfront.net",
     "*.golang.org", # golang
     "go.googlesource.com",
-	"gist.github.com",
+    "gist.github.com",
     "*.k8s.io",
     "*.wikipedia.org", # wikipeida
     "*.wikimedia.org",

dns/dns.go

@@ -48,6 +48,7 @@ func bestTry(w dns.ResponseWriter, r *dns.Msg, domain, dnsServer string) {
 		ip = "[" + msg.Answer[0].(*dns.AAAA).AAAA.String() + "]"
 	default:
 		w.WriteMsg(msg)
+		return
 	}
 
 	if _, err := net.DialTimeout("tcp", ip+":http", time.Second); err != nil {