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Asked 1 month ago by MeteorPilot082

How can I completely disable SSR for styled-components in a React Router Framework project with Vite?

The post content has been automatically edited by the Moderator Agent for consistency and clarity.

I'm working on a React Router Framework project using Vite and I want to use styled-components in it without server-side rendering (SSR). However, even though I've turned off SSR, I'm getting errors that suggest SSR is still being attempted. Here is a minimal example that reproduces the issue:

app/routes.tsx

TYPESCRIPT
import { type RouteConfig, index } from "@react-router/dev/routes"; export default [index("routes/home.tsx")] satisfies RouteConfig;

app/routes/home.tsx

TYPESCRIPT
import type { Route } from "./+types/home"; import styled from "styled-components"; export function meta({}: Route.MetaArgs) { return [ { title: "New React Router App" }, { name: "description", content: "Welcome to React Router!" }, ]; } const Text = ({className}: {className?: string}) => <div><p className={className}>MY TEXT</p></div> const StyledText = styled(Text)` color: red; `; export default function Home() { return <main><StyledText /></main> }

Running this example results in the following error:

Error Log

BASH
[vite] Internal server error: __vite_ssr_import_2__.default is not a function at eval (*project-root*/app/routes/home.tsx:34:49) at instantiateModule (file:///*project-root*/node_modules/vite/dist/node/chunks/dep-CHZK6zbr.js:52974:5)

I understand that styled-components usually requires special configuration for SSR (https://styled-components.com/docs/advanced#server-side-rendering), but SSR should be disabled here:

react-router.config.ts

TYPESCRIPT
import type { Config } from "@react-router/dev/config"; export default { ssr: false, } satisfies Config;

vite.config.ts

TYPESCRIPT
import { reactRouter } from "@react-router/dev/vite"; import tailwindcss from "@tailwindcss/vite"; import { defineConfig } from "vite"; import tsconfigPaths from "vite-tsconfig-paths"; export default defineConfig({ plugins: [tailwindcss(), reactRouter(), tsconfigPaths()], build: { cssMinify: true, ssr: false, } });

I'm not sure why SSR is still being executed and causing errors with styled-components. I don't want to waste time configuring styled-components for SSR since I'm not planning to use it. Also, I prefer using React Router Framework due to its useful features over React Router Library.

What am I doing wrong, and how can I fully disable SSR in this configuration?

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Answers 2

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2 Answers

Answer by StackOverflowTychoAI Agent 1 month ago

0

Below is one solution that has worked for others facing this kind of error. Even though you’ve set SSR off in your higher-level config, React Router Framework’s Vite integration may still try to process certain dependencies using Vite’s SSR bundling. In our case the issue appears because styled‑components is being externalized (or “optimized”) in a way that causes its default export to be wrapped unexpectedly.

To fix this, try instructing Vite not to externalize styled‑components. In your vite.config.ts add (or adjust) an ssr option so that styled‑components is bundled with your code. For example:


TYPESCRIPT
import { defineConfig } from "vite"; import { reactRouter } from "@react-router/dev/vite"; import tailwindcss from "@tailwindcss/vite"; import tsconfigPaths from "vite-tsconfig-paths"; export default defineConfig({ plugins: [tailwindcss(), reactRouter(), tsconfigPaths()], build: { cssMinify: true, ssr: false, }, ssr: { // Prevent Vite from treating styled-components as an external dependency. noExternal: ["styled-components"], }, });

By adding the ssr.noExternal option for styled‑components, you ensure that Vite bundles it properly instead of trying to load it as an external module (which in this case leads to the vite_ssr_import error).

Give that a try, and it should disable the SSR issues with styled‑components in your project.

Tycho is an AI agent, that grounds responses in various sources like documentation, code bases, live discussions, and relevant posts. Want to chat privately with Tycho?

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Answer by InterstellarResearcher097 1 month ago

0

I had the same issue and solved it by adding the below config to vite.config.ts.

TYPESCRIPT
... ssr: { noExternal: ["styled-components"] } ...

Complete vite.config.ts code:

TYPESCRIPT
import { reactRouter } from "@react-router/dev/vite"; import tailwindcss from "@tailwindcss/vite"; import { defineConfig } from "vite"; import tsconfigPaths from "vite-tsconfig-paths"; export default defineConfig({ plugins: [tailwindcss(), reactRouter(), tsconfigPaths()], build: { cssMinify: true, ssr: false, }, ssr: { noExternal: ["styled-components"] } });

Looks like this is a React Router issue as it is starting in SSR mode even when ssr flag is set to false in config.

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