Vue2使用location.href导航到外部URL

我试图使用router.go，router.push，router.replace和window.location.href转到“ www.mytargeturl.org”以重定向我的vuejs应用程序，但我总是得到myVueapp.com/www.mytargeturl.org，这是我的路线：

  routes:[
{path: '/', component: App,
  children:[
    {
      path: 'detail',
      component: ItemDetail,
      props: true
    },
    {
      path: 'search',
      component: Middle
    }       
  ]
},   
{
  path: '/test', component: Test
},
{ path: '/a', redirect: 'www.mytargeturl.org' } // also tried this but didnt work

]