VM52 WAService.js:2 Error: getMenuButtonBoundingClientRect:fail No window with id: 24.
    at Object.i (VM52 WAService.js:2)
    at Object.C.l.forEach.t.<computed> [as getMenuButtonBoundingClientRect] (VM52 WAService.js:2)
    at Object.<anonymous> (VM52 WAService.js:2)
    at Object.<anonymous> (VM52 WAService.js:2)
    at Object.<anonymous> (VM52 WAService.js:2)
    at :18977/appservice/< at wx.getMenuButtonBoundingClientRect>
    at Object.<anonymous> (VM52 WAService.js:2)
    at Object.value [as getMenuButtonBoundingClientRect] (apihook.js?t=wechat&s=1619254445921&v=c4a51e35d43a45c589be753667fe6667:1)
    at e.onLaunch (app.js? [sm]:19)
    at e.<anonymous> (VM52 WAService.js:2)

//app.js
App({
  onLaunch: function () {
    if (!wx.cloud) {
      console.error('请使用 2.2.3 或以上的基础库以使用云能力')
    } else {
      wx.cloud.init({
        // env 参数说明：
        //   env 参数决定接下来小程序发起的云开发调用（wx.cloud.xxx）会默认请求到哪个云环境的资源
        //   此处请填入环境 ID, 环境 ID 可打开云控制台查看
        //   如不填则使用默认环境（第一个创建的环境）
        // env: 'my-env-id',
        traceUser: true,
      })
    }


    // const { bottom } = wx.getMenuButtonBoundingClientRect()


    console.log(wx.getMenuButtonBoundingClientRect())
    
    this.globalData = {
      safeTop: 0
    }
  }
})

模拟器脱离的时候：

正常的