A problem that Multi-page app couldn't reload in ios 13 machine

I use Vue to build a Multi-page app,not SPA. When pageB back to pageA, I found that no one lifecycle hook method,like created and mounted, was called back in ios 13 machine,but ios 12 machine and android machine is normal. Why?
By the way, who can tell me how to achieve the effect in MPA, like using vuex in SPA
Thanks!