diff --git a/internal/protocol/http/fetcher.go b/internal/protocol/http/fetcher.go
index 5369bc1b..bda1a457 100644
--- a/internal/protocol/http/fetcher.go
+++ b/internal/protocol/http/fetcher.go
@@ -451,10 +451,11 @@ func (f *Fetcher) splitChunk() (chunks []*chunk) {
 }
 
 func (f *Fetcher) buildClient() *http.Client {
-	transport := &http.Transport{}
+	transport := &http.Transport{
+		Proxy: f.ctl.ProxyConfig.ToHandler(),
+	}
 	// Cookie handle
 	jar, _ := cookiejar.New(nil)
-	transport.Proxy = f.ctl.ProxyConfig.ToHandler()
 	return &http.Client{
 		Transport: transport,
 		Jar:       jar,
diff --git a/pkg/download/engine/inject/xhr/module.go b/pkg/download/engine/inject/xhr/module.go
index d43491a2..dd6e0a77 100644
--- a/pkg/download/engine/inject/xhr/module.go
+++ b/pkg/download/engine/inject/xhr/module.go
@@ -203,11 +203,8 @@ func (xhr *XMLHttpRequest) Send(data goja.Value) {
 	for k, v := range xhr.requestHeaders {
 		req.Header.Set(k, v)
 	}
-	var transport *http.Transport
-	if xhr.proxyHandler != nil {
-		transport = &http.Transport{
-			Proxy: xhr.proxyHandler,
-		}
+	transport := &http.Transport{
+		Proxy: xhr.proxyHandler,
 	}
 	client := &http.Client{
 		Transport: transport,