"TypeError: undefined is not a function at System.register.execute" in chrome 39

[oyster0118]

Describe the bug

"TypeError: undefined is not a function
    at System.register.execute (https://XXX/assets/index-legacy-4ace9b4e.js:28:31225)
    at n (https://XXX/assets/polyfills-legacy-05ebab4a.js:1:57039)
    at v (https://XXX/assets/polyfills-legacy-05ebab4a.js:1:57413)
    at https://XXX/assets/polyfills-legacy-05ebab4a.js:1:56952
    at nl (https://XXX/assets/polyfills-legacy-05ebab4a.js:1:24256)
    at https://XXX/assets/polyfills-legacy-05ebab4a.js:1:24487
    at MutationObserver.Jf (https://XXX/assets/polyfills-legacy-05ebab4a.js:1:22200)"

vite.config.ts

import { fileURLToPath, URL } from 'node:url'

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import Components from 'unplugin-vue-components/vite'
import { VantResolver } from '@vant/auto-import-resolver'
import legacy from '@vitejs/plugin-legacy'

// https://vitejs.dev/config/
export default defineConfig({
  base:'/xx',
  plugins: [
    vue(),
    Components({
      resolvers: [VantResolver()],
    }),
    legacy({
      targets: ['defaults', 'android >= 4.4', 'chrome >= 39'],
      additionalLegacyPolyfills: ['regenerator-runtime/runtime'],
      renderLegacyChunks: true,
      polyfills:[
        'es.symbol',
        'es.array.filter',
        'es.promise',
        'es/reflect',
        'es.promise.finally',
        'es/map',
        'es/set',
        'es.array.for-each',
        'es.object.define-properties',
        'es.object.define-property',
        'es.object.get-own-property-descriptor',
        'es.object.get-own-property-descriptors',
        'es.object.keys',
        'es.object.to-string',
        'web.dom-collections.for-each',
        'esnext.global-this',
        'esnext.string.match-all'
      ]
    })
  ],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url))
    }
  },
  server: {
    port: 8080,
    proxy: {
      '/xxxt': {
        target: 'https://XXX.com',
        changeOrigin: true,
        rewrite: (path) => path.replace(/^\/XX/, 'XX')
      }
    },
  }
})

Reproduction

https://stackblitz.com/edit/vitejs-vite-fdnmkt?file=vite.config.ts,package.json,index.html&terminal=dev

Steps to reproduce

No response

System Info

System:
    OS: Windows 10 10.0.17763
    CPU: (4) x64 Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
    Memory: 1.96 GB / 7.44 GB
  Binaries:
    Node: 18.16.1 - C:\Program Files\nodejs\node.EXE
    npm: 9.5.1 - ~\AppData\Roaming\npm\npm.CMD
    pnpm: 7.25.0 - ~\AppData\Roaming\npm\pnpm.CMD
  Browsers:
    Chrome: 125.0.6422.141(39.0.0.0)
    Internet Explorer: 11.0.17763.1
  npmPackages:
    @vitejs/plugin-legacy: ^4.1.1 => 4.1.1
    @vitejs/plugin-vue: ^4.4.0 => 4.4.0
    vite: ^4.4.11 => 4.5.0

Used Package Manager

npm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[stackblitz]

Start a new pull request in StackBlitz Codeflow.

• vitejs-vite-fdnmkt (Open reproduction)

[bluwy]

The repro given doesn't match the bug and setup you're describing. I can't replicate it locally. Can you update with a new repro link?

I'd also suggest minimizing the Vite plugins used and dependencies to narrow down what's causing it. From the error, it seems like System.register.execute is called before System.register is initialized by systemjs.

[github-actions]

Hello @oyster0118. Please provide a minimal reproduction using a GitHub repository or StackBlitz. Issues marked with needs reproduction will be closed if they have no activity within 3 days.

[oyster0118]

The repro given doesn't match the bug and setup you're describing. I can't replicate it locally. Can you update with a new repro link?

I'd also suggest minimizing the Vite plugins used and dependencies to narrow down what's causing it. From the error, it seems like System.register.execute is called before System.register is initialized by systemjs.

I just updated the link to reproduce the issue. In addition, I have a question: can the Vue3 application built by Vite be compatible with Chrome version 39?

[sapphi-red]

The error is happening because you didn't add the polyfill for Object.assign. If you add es.object.assign to polyfills, the undefined is not a function error disappears. But a different error (ReferenceError: Proxy is not defined) would be shown.

This is because Vue 3 doesn't support Chrome 39.
https://vuejs.org/about/faq.html#what-browsers-does-vue-support

Closing as it's not a bug in Vite nor plugin-legacy.