// vue-router/src/util/push-state.js

export function pushState (url?: string, replace?: boolean) {
 saveScrollPosition()
 // try...catch the pushState call to get around Safari
 // DOM Exception 18 where it limits to 100 pushState calls
 const history = window.history
 try {
  if (replace) {
   history.replaceState({ key: _key }, '', url)
  } else {
   _key = genKey()
   history.pushState({ key: _key }, '', url)
  }
 } catch (e) {
  window.location[replace ? 'replace' : 'assign'](url)
 }
}

export function replaceState (url?: string) {
 pushState(url, true)
}

// app.vue

watch: {
 $route: {
  immediate: true,
  deep: true,
  handler(to) {
   // 微信瀏覽器判斷
   const WECHAT_BROWSER = navigator.userAgent.toLowerCase().includes('micromessenger')

   // 解決iOS微信瀏覽器分享地址只能是落地頁的問題，這個操作是不會刷新頁面的，query參數(shù)改變也會執(zhí)行
   if (WECHAT_BROWSER) {
    // eslint-disable-next-line
    window.location.href = window.location.href
   }
  }
},

// main.js

// 微信瀏覽器判斷
const WECHAT_BROWSER = navigator.userAgent.toLowerCase().includes('micromessenger')

// 在url插入的search參數(shù)，可以隨意，但是必須要
// 例：http://192.168.1.5:8080/?_wx_=1#/
const wxQuery = '_wx_=1'
const isRepeatQuery = location.search.includes(wxQuery)
if (WECHAT_BROWSER && !isRepeatQuery) {
 const unit = (location.search && location.search !== '?') ? '&' : '?'
 location.search += unit + wxQuery  // 添加_wx_參數(shù)，該操作會刷新頁面
}