projects developed using vue-cli scaffolding are almost done. Suddenly they are told that the browsers that come with the phone or the lower versions of the browsers (mostly chrome 37) do not display properly, only blank pages.
first go to the pictures of vconsole and weinre

main.js router.js vuex app.vue alert app.js

babel es6 es5

babel-polyfill cannot be added (cdn, import, entry)

ask all the gods to help solve this problem or provide some ideas. Thank you