vite-plugin-legacy ignoreBrowserslistConfig option not working

[hemengke1997]

Describe the bug

babel detect browerslist config when ignoreBrowerslistConfig and no targets:
https://github.com/babel/babel/blob/HEAD/packages/babel-helper-compilation-targets/src/index.ts#L197-L198

But, vite-plugin-legacy set targets: 'defaults' when not targets option in:
https://github.com/vitejs/vite/blob/HEAD/packages/plugin-legacy/src/index.ts#L122-L123

So, ignoreBrowserslistConfig made no sence. This is the FIRST.

Then, I developed vite-plugin-legacy locally, set targets to options.targets here:
https://github.com/vitejs/vite/blob/HEAD/packages/plugin-legacy/src/index.ts#L433-L434

and debug build with:

legacy({
  renderLegacyChunks: true,
  polyfills: true,
  ignoreBrowserslistConfig: false,
}),

then I found that babel can't detect browserslist config. I don't know whose problem this is.

Reproduction

https://github.com/hemengke1997/vpl-ignoreBrowerslist-repro

Steps to reproduce

1. build with ignoreBrowerslist: true, then check the size of dist
2. build with ignoreBrowerslist: true, the size is the same

System Info

System:
    OS: Windows 10 10.0.22000
    CPU: (20) x64 12th Gen Intel(R) Core(TM) i7-12700KF
    Memory: 16.72 GB / 31.82 GB
  npmPackages:
    @vitejs/plugin-legacy: ^2.3.1 => 2.3.1
    @vitejs/plugin-react: ^2.2.0 => 2.2.0
    vite: ^3.2.3 => 3.2.3

Used Package Manager

pnpm

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.

[sapphi-red]

Closing as a duplicate of #2476