[@vitejs/plugin-legacy] Rollup option output.hashCharacters is ignored when bundling legacy polyfills chunk

[JulianSchoenbaechler]

Describe the bug

When the Vite legacy plugin bundles polyfill chunks, the rollup option output.hashCharacters is ignored.

Relevant part in source code:

vite/packages/plugin-legacy/src/index.ts

Line 817 in 2b602e2

entryFileNames: rollupOutputOptions.entryFileNames,

Option output.hashCharacters should be passed as well.

Reproduction

https://stackblitz.com/edit/vitejs-vite-hvjsb2nr?file=vite.config.js

Steps to reproduce

Run npm install followed by npm run build. Observe that the produced polyfills chunk has a filename containing a base64 hash; instead of the specified base36 hash.

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    @vitejs/plugin-legacy: ^6.0.0 => 6.0.0 
    vite: ^6.0.5 => 6.0.6

Used Package Manager

npm

Logs

No response

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