From 64f16f7f383c7baf847a047c0bb7081a9f210133 Mon Sep 17 00:00:00 2001
From: Denton Gentry <dgentry@tailscale.com>
Date: Sat, 3 Jun 2023 10:33:18 -0700
Subject: [PATCH] net/dnscache: use PreferGo on Windows.

Updates https://github.com/tailscale/tailscale/issues/5161

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
---
 net/dnscache/dnscache.go | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/net/dnscache/dnscache.go b/net/dnscache/dnscache.go
index 0983ae875..f3fd50fb9 100644
--- a/net/dnscache/dnscache.go
+++ b/net/dnscache/dnscache.go
@@ -143,10 +143,6 @@ func (r *Resolver) cloudHostResolver() (v *net.Resolver, ok bool) {
 	switch runtime.GOOS {
 	case "android", "ios", "darwin":
 		return nil, false
-	case "windows":
-		// TODO(bradfitz): remove this restriction once we're using Go 1.19
-		// which supports net.Resolver.PreferGo on Windows.
-		return nil, false
 	}
 	ip := cloudenv.Get().ResolverIP()
 	if ip == "" {