XdYangXiaoRong

升级vue-cli从4.5.0直接通过命令vue upgrade升级到5.0.8后，页面在ios12和ios13上白屏了，代码无法执行

5

### Version 5.0.8 ### Environment info ``` "@vue/cli-plugin-babel": "~5.0.8", "@vue/cli-plugin-eslint": "~5.0.8", "@vue/cli-plugin-router": "~5.0.8", "@vue/cli-plugin-typescript": "~5.0.8", "@vue/cli-plugin-unit-jest": "~5.0.8", "@vue/cli-plugin-vuex": "~5.0.8", "@vue/cli-service": "~5.0.8", "@vue/eslint-config-prettier": "^6.0.0", "@vue/eslint-config-typescript": "^9.1.0", "@vue/test-utils": "^1.0.3", "@vue/vue2-jest": "^29.2.0", ```...