[Vuejs]-Vue v-model breaks after history forward, history back

That’s back-forward cache (at least the implementation on Chrome).

In a real scenario bfcache is disabled because the app is either on https or because it’s not cached (header Cache-Control: no-cache, max-age=0, must-revalidate, no-store)

I could not comment, I wrote as an answer because my score was not enough. I think you should take a look here. https://vuex.vuejs.org/