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Link preload should be in front of inlined CSS #15224

@kiwixz

Description

@kiwixz

Describe the bug

When CSS is inlined in <head>, it will go before the <link> preloads. And this CSS can be huge depending on user settings, so it would make sense to hint the browser of other network requests to do before making it parse it.
Interestingly the favicon is placed after the preloads even when inlined.

Reproduction

Enable CSS inlining in svelte.config.js:

export default {
  kit: {
    adapter: adapter(),
    inlineStyleThreshold: Infinity,
  },
}

Logs

System Info

Binaries:
    Node: 20.19.2 - /usr/bin/node
    npm: 9.2.0 - /usr/bin/npm
  Browsers:
    Firefox: 140.7.0esr
    Firefox Developer Edition: 140.7.0esr
  npmPackages:
    @sveltejs/adapter-static: ^3.0.10 => 3.0.10 
    @sveltejs/kit: ^2.50.1 => 2.50.1 
    svelte: ^5.48.3 => 5.48.3 
    vite: ^7.3.1 => 7.3.1

Severity

annoyance

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No response

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