From 2ce5fc7b0a16eaa85d1d1e8d8c807c3330984a3b Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Wed, 27 Oct 2021 14:53:28 -0700
Subject: [PATCH] safesocket: fail early on js/wasm

Updates #3157

Change-Id: Ib78efb3b1ba34ca4fb34296033b95327188774a7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
---
 safesocket/unixsocket.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/safesocket/unixsocket.go b/safesocket/unixsocket.go
index bbf822f03..a49e227eb 100644
--- a/safesocket/unixsocket.go
+++ b/safesocket/unixsocket.go
@@ -8,6 +8,7 @@
 package safesocket
 
 import (
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -23,6 +24,9 @@ import (
 
 // TODO(apenwarr): handle magic cookie auth
 func connect(path string, port uint16) (net.Conn, error) {
+	if runtime.GOOS == "js" {
+		return nil, errors.New("safesocket.Connect not yet implemented on js/wasm")
+	}
 	if runtime.GOOS == "darwin" && path == "" && port == 0 {
 		return connectMacOSAppSandbox()
 	}