page.MustExpose not work in launcher.NewAppMode()

[hktalent]

@ysmood
Rod Version: v0.114.8
go version go1.21.4 darwin/amd64

page.MustExpose can not work in launcher.NewAppMode()

chromeLauncher := launcher.New().
		Headless(false).
		Set(flags.Env, "GOOGLE_API_KEY=no").
		Delete("no-startup-window").
		Delete("enable-automation").
		Set(flags.App, szUrl).
...
launcherURL, err := chromeLauncher.Launch()
	if err != nil {
		log.Println(err)
		return
	}
	browser := rod.New().ControlURL(launcherURL)
	if err = browser.Connect(); err != nil {
		log.Println(err)
		return
	}
var page *rod.Page
	if p, err := browser.Pages(); nil == err && 0 < len(p) {
		page = p[0]
		page.MustEvalOnNewDocument(`console.log=window.confirm=window.alert=()=>{}`)
		// 封装的 Go 方法，供浏览器的 JavaScript 调用
		page.MustExpose("SaveMp4", func(s gson.JSON) (interface{}, error) {
log.Println("SaveMp4 now work")
....
return nil, nil
		})

page.MustNavigate(szUrl)

page.MustWaitLoad()

time.Sleep(time.Duration(nMxt) * time.Second)
	// 等待浏览器关闭
	browser.MustClose()

[github-actions]

Please fix the format of your markdown:

1:8 MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]
6 MD031/blanks-around-fences Fenced code blocks should be surrounded by blank lines [Context: "```"]
6 MD040/fenced-code-language Fenced code blocks should have a language specified [Context: "```"]

_{generated by check-issue}

[ysmood]

Could you provide more details?