From 6acfc71103fd731e9966fa7000f2c71923f4fc4d Mon Sep 17 00:00:00 2001
From: Shelikhoo <xiaokangwang@outlook.com>
Date: Tue, 11 Apr 2023 20:28:24 +0100
Subject: [PATCH] Fix '?' at end of WebSocket path get escaped

This fix align sing-box's behaviour with V2Ray when it comes to processing ? at the end of WebSocket's path.
---
 transport/v2raywebsocket/client.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/transport/v2raywebsocket/client.go b/transport/v2raywebsocket/client.go
index bbcfa569..ea17455f 100644
--- a/transport/v2raywebsocket/client.go
+++ b/transport/v2raywebsocket/client.go
@@ -61,6 +61,10 @@ func NewClient(ctx context.Context, dialer N.Dialer, serverAddr M.Socksaddr, opt
 	if !strings.HasPrefix(uri.Path, "/") {
 		uri.Path = "/" + uri.Path
 	}
+	if strings.HasSuffix(uri.Path, "?") {
+		uri.ForceQuery = true
+		uri.Path = strings.TrimSuffix(uri.Path, "?")
+	}
 	headers := make(http.Header)
 	for key, value := range options.Headers {
 		headers[key] = value