allow modifying public assets after build (or in hook)

[kstraszewski]

Environment

• Operating System: Darwin
• Node Version: v16.14.0
• Nuxt Version: 3.0.0-rc.9
• Nitro Version: 0.5.0
• Package Manager: [email protected]
• Builder: vite
• User Config: app, ssr, postcss, generate, nitro, buildModules, css, meta, modules, sitemap, image, unocss, publicRuntimeConfig, vite, nuxtTypedRouter, plugins
• Runtime Modules: @unocss/[email protected], @nuxt/[email protected], [email protected], @funken-studio/[email protected]
• Build Modules: @pinia/[email protected], @vueuse/[email protected], ()

Reproduction

I have purgecss running from CLI after building and app. Like on the top of the build process, after updating it to rc9 purgecss (which clears vuetify styles) generate ERR_CONTENT_LENGTH_MISMATCH error. But I couldn't manage to reproduce it on stackblitz.

1. build the app
2. use purgecss CLI purgecss -c purgeCSSConfig.js
3. serve the app

Describe the bug

Purging css after build by using purgecss breaks fetching CSS. purgecss -c purgeCSSConfig.js

Additional context

No response

Logs

No response

[kstraszewski]

@danielroe Here is a reproduction: https://stackblitz.com/edit/github-w6cj1g-eqr6s9?file=package.json

But on stackblitz everything works, you need to download project locally, then:

1. npm I
2. npm run build
3. npm purge
4. npm preview

Im getting ERR_CONTENT_LENGTH_MISMATCH error on every CSS file that was purged, it may be a Mac m1 problem. But on rc6 everything was 100% ok (I think on rc8 also). It might be something with new nitro 0.5.0

[kstraszewski]

When i try to use purgecss "proper way" by using postcss.plygins['@fullhuman/postcss-purgecss'] in nuxt.config.js. Im getting this error: https://github.com/unocss/unocss/issues/1538

[markgibbons25]

I'm getting the same issue on some png files. svg are fine. Perhaps some kind of optimizer is running?

[danielroe]

Ahh. The issue is that etags/size/mime/encoding is calculated when the nitro build happens, and you are modifying the files afterwards.

[rnenjoy]

Having the same issue. In nuxt 2 my CMS could add pictures to /static and its still being served. Now it says file not found.