Hacktoberfest 2026:メンテナが10月に向けて印を付けた、オープンで初心者向けの issue。 Hacktoberfest の issue を見る

Dev: a stylesheet shared by the entry and a lazy component moves after the lazy component's styles

オープン
#425 コメント 0 件 リアクション 0 件 担当者 0 名 GitHub で見る

メンテナーはふだん 1 日以内に返信

まだ誰も着手していません。

評価

難易度
3/5
見積もり時間
半日
初心者へのやさしさ
62/100
issue の種類
バグ
明瞭さ
明確に書かれている
活発さ
活発
技術スタック
css, javascript, typescript

調査の方向性

The dedupe logic is in devStylePatch in src/dev-manifest.ts, on the line that picks ssr from o and el by data-asset. Reproduce with the issue's App/Button/Page files and check the link tags in the hydrated head. Done means .corner resolves to absolute in dev, the stylesheet order matches vite build, and editing button.css still hot-updates while the page is open.

索引モデルが issue の本文から書いたものです。

説明

In start-mode dev, a stylesheet that both the entry graph and a lazy component import ends up after the lazy component's own stylesheets. Production keeps it before them. Rules of equal specificity then resolve the other way in dev: a lazy page's override of a shared component's style loses.

Versions: @solidjs/[email protected], [email protected], @solidjs/[email protected], [email protected].

Reproduction
// vite.config.ts
import { defineConfig } from 'vite';
import solid from '@solidjs/vite-plugin';

export default defineConfig({
  plugins: [solid({ start: { app: 'src/App.tsx' }, ssr: true })],
});
// src/App.tsx
import { lazy, Loading } from 'solid-js';
import { Button } from './Button';

const Page = lazy(() => import('./Page'));

export default function App() {
  return (
    <main>
      <Button>Header button</Button>
      <Loading>
        <Page />
      </Loading>
    </main>
  );
}
// src/Button.tsx
import type { JSX } from 'solid-js';
import './button.css';

export function Button(props: { class?: string; children: JSX.Element }) {
  return <button class={`button ${props.class ?? ''}`}>{props.children}</button>;
}
// src/Page.tsx
import { Button } from './Button';
import './page.css';

export default function Page() {
  return (
    <div class="panel">
      <Button class="corner">Copy</Button>
    </div>
  );
}
/* src/button.css */
.button {
  position: relative;
}
/* src/page.css */
.panel {
  position: relative;
  height: 200px;
  border: 1px solid;
}

/* Same specificity as .button, so it wins only when page.css comes after button.css. */
.corner {
  position: absolute;
  top: 8px;
  right: 8px;
}

Run vite, open the page, and wait for hydration. "Copy" stays in the normal flow instead of the panel's top right corner. vite build + vite preview renders it in the corner.

style tags in the server HTML style tags after hydration .corner
dev button.css, page.css, button.css page.css, button.css position: relative
build Button-*.css, Page-*.css Button-*.css, Page-*.css position: absolute
Cause

The dev shell carries button.css twice, both marked data-asset. The SSR runtime renders the lazy component's styles (button.css, page.css), and the handler then injects the entry graph's styles (button.css again) before </head>.

devStylePatch (src/dev-manifest.ts) dedupes the two by data-vite-dev-id. It removes o, the tag found by querySelectorAll, whenever o is data-asset:

var ssr=o.hasAttribute("data-asset")?o:el.hasAttribute("data-asset")?el:null;

When both twins are SSR'd, the observer handles the later tag as el, so o is the earlier one and it is removed. The copy that survives sits after page.css.

Suggested fix

When both twins are SSR'd, drop the later one, so the stylesheet keeps the first position the shell gave it:

var ssr=o.hasAttribute("data-asset")&&el.hasAttribute("data-asset")?(o.compareDocumentPosition(el)&4?el:o):o.hasAttribute("data-asset")?o:el.hasAttribute("data-asset")?el:null;

With that line patched into the repro's copy of the plugin, the hydrated order is button.css, page.css and .corner is absolute, as in the build. Editing button.css with the page open still hot-updates it.

Not emitting entry styles that the shell already carries would fix it as well. Moving the entry styles ahead of the lazy ones does not: in the larger app where I first saw this, the shared stylesheets still ended up after the lazy ones.

主要言語
TypeScript
スター
522
フォーク
73
平均マージ
1日 4時間
マージ済み PR(30日)
35

環境構築

はじめの一歩

  1. issue を最後まで読み、次にプロジェクトのコントリビューションガイドを読みます。
  2. 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
  3. リポジトリをフォークし、ブランチを切って変更します。
  4. issue 番号を参照したプルリクエストを送ります。

solidjs/solid-vite-plugin のほかの issue

solidjs/solid-vite-plugin の issue をすべて見る

似ている issue

TypeScript の issue をもっと見る

新しい issue をメールで受け取る

初心者向けの GitHub issue を短くまとめたダイジェスト。