feat(resolve)!: remove resolve.browserField

[bluwy]

Description

resolve.browserField was introduced deprecated by default in #10071. The plan was to update resolve.mainFields to ['browser', 'module', 'jsnext:main', 'jsnext'] which I did in this PR.

This particular change can be breaking for tooling as some tools (e.g. vite-plugin-svelte) wants to add additional mainFields, and the only way to not remove the existing ['module', 'jsnext:main', 'jsnext'] was to hardcode it:

https://github.com/sveltejs/vite-plugin-svelte/blob/b4b4fddf4d226856aa0f27fa4f32621dfb2938bf/packages/vite-plugin-svelte/src/utils/constants.js#L1

https://github.com/sveltejs/vite-plugin-svelte/blob/b4b4fddf4d226856aa0f27fa4f32621dfb2938bf/packages/vite-plugin-svelte/src/utils/options.js#L359-L362

Additional context

Noticed this while working on #14723

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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[bluwy]

I'm not sure if this was a mistake, the browserField was used in SSR resolving.

[sapphi-red]

Before #10071, Vite used browser field even with ssrModuleLoader and I wanted to preserve that behavior to avoid a breaking change. I think this change makes sense.

[patak-dev]

Looks good to me. I think it would be good to add a warning if the user has browserField: false and 'browser' is present in mainFields to help with the migration.

[sapphi-red]

Thanks! I forgot about this thing 😅

[sapphi-red]

Before #10071, Vite used browser field even with ssrModuleLoader and I wanted to preserve that behavior to avoid a breaking change. I think this change makes sense.

[bluwy]

/ecosystem-ci run

[vite-ecosystem-ci]

📝 Ran ecosystem CI on 297b425: Open

suite	result	latest scheduled
analogjs	✅ success	✅ success
astro	✅ success	✅ success
histoire	✅ success	✅ success
ladle	✅ success	✅ success
laravel	❌ failure	❌ failure
marko	❌ failure	❌ failure
nuxt	✅ success	✅ success
nx	❌ failure	❌ failure
previewjs	✅ success	✅ success
qwik	✅ success	✅ success
rakkas	✅ success	✅ success
sveltekit	✅ success	❌ failure
unocss	✅ success	✅ success
vike	✅ success	❌ failure
vite-plugin-pwa	❌ failure	❌ failure
vite-plugin-react	✅ success	✅ success
vite-plugin-react-pages	✅ success	✅ success
vite-plugin-react-swc	✅ success	✅ success
vite-plugin-svelte	✅ success	✅ success
vite-plugin-vue	✅ success	✅ success
vite-setup-catalogue	✅ success	✅ success
vitepress	✅ success	✅ success
vitest	✅ success	❌ failure