text: import Vue from 'vue'
  
  let lastRoute
  const keepAliveHook = {}
  
  if (!process.server) {
    keepAliveHook.install = Vue => {
      const keepAlivePages = process.env.keepAlivePages || []
  
      Vue.mixin({
        // Save route if this instance is a page (has metaInfo)
        mounted() {
          if (this.$metaInfo) {
            lastRoute = this.$route.name
          }
        },
        activated() {
          if (this.$metaInfo) {
            lastRoute = this.$route.name
          }
        },
        deactivated() {
          // If this is a page and we don't want it to be kept alive
          if (this.$metaInfo && !keepAlivePages.includes(lastRoute)) {
            this.$destroy()
          }
        }
      })
    }
    Vue.use(keepAliveHook)
  }
  