diff --git a/client.go b/client.go
index 1ea55e8..9b4b6a8 100644
--- a/client.go
+++ b/client.go
@@ -47,7 +47,7 @@ type Webview struct {
 	id        uint64
 	w         webview.WebView
 	isRunning bool
-	isAsync   bool
+	// isAsync   bool
 	isDebug   bool
 	webRoot   string
 	watcher   *watcher.Watcher
@@ -274,14 +274,13 @@ func init() {
 			}
 
 			w := &Webview{isDebug: isDebug, html: html, url: url}
-			startChan := make(chan bool, 1)
-			go func() {
+			// startChan := make(chan bool, 1)
+			gojs.RunInMain(func() {
 				windowsLock.Lock()
 				w.id = windowsId
 				windowsId++
 				windows[w.id] = w
 				windowsLock.Unlock()
-
 				w.w = webview.New(isDebug)
 				w.w.SetTitle(title)
 				w.w.SetSize(width, height, getSizeMode(sizeMode))
@@ -309,13 +308,13 @@ func init() {
 				w.isRunning = true
 
 				w.reload()
-				startChan <- true
+				// startChan <- true
 				w.w.Run()
 				// fmt.Println("====== w.w.Run() end")
 				w.doClose()
-			}()
+			})
 
-			<-startChan
+			// <-startChan
 			return vm.ToValue(gojs.MakeMap(w))
 		},
 		"closeAll": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
@@ -330,5 +329,6 @@ func init() {
 		TsCode:      clientTS,
 		Example:     clientMD,
 		WaitForStop: Wait,
+		OnKill:      CloseAll,
 	})
 }
diff --git a/go.mod b/go.mod
index ae9f345..da81dbc 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,6 @@ go 1.18
 require (
 	apigo.cc/gojs v0.0.1
 	github.com/ssgo/tool v0.4.27
-	github.com/ssgo/u v1.7.9
 	github.com/webview/webview_go v0.0.0-20240831120633-6173450d4dd6
 )
 
@@ -17,6 +16,7 @@ require (
 	github.com/ssgo/config v1.7.7 // indirect
 	github.com/ssgo/log v1.7.7 // indirect
 	github.com/ssgo/standard v1.7.7 // indirect
+	github.com/ssgo/u v1.7.9 // indirect
 	golang.org/x/sys v0.26.0 // indirect
 	golang.org/x/text v0.19.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect