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Add a flag to disable MergeCssChunksPlugin #62746

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merged 1 commit into from
Mar 1, 2024
Merged

Add a flag to disable MergeCssChunksPlugin #62746

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5 changes: 4 additions & 1 deletion packages/next/src/build/webpack-config.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1897,7 +1897,10 @@ export default async function getBaseWebpackConfig(
new NextFontManifestPlugin({
appDir,
}),
!dev && isClient && new MergeCssChunksPlugin(),
!dev &&
isClient &&
config.experimental.mergeCssChunks &&
new MergeCssChunksPlugin(),
!dev &&
isClient &&
new (require('./webpack/plugins/telemetry-plugin').TelemetryPlugin)(
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1 change: 1 addition & 0 deletions packages/next/src/server/config-schema.ts
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Expand Up @@ -276,6 +276,7 @@ export const configSchema: zod.ZodType<NextConfig> = z.lazy(() =>
linkNoTouchStart: z.boolean().optional(),
manualClientBasePath: z.boolean().optional(),
middlewarePrefetch: z.enum(['strict', 'flexible']).optional(),
mergeCssChunks: z.boolean().optional(),
navigationRAF: z.boolean().optional(),
nextScriptWorkers: z.boolean().optional(),
// The critter option is unknown, use z.any() here
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6 changes: 6 additions & 0 deletions packages/next/src/server/config-shared.ts
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Expand Up @@ -193,6 +193,11 @@ export interface ExperimentalConfig {
swrDelta?: SwrDelta
middlewarePrefetch?: 'strict' | 'flexible'
manualClientBasePath?: boolean
/**
* This will enable a plugin that attempts to keep CSS entries below a certain amount
* by merging smaller chunks into larger ones
*/
mergeCssChunks?: boolean
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/**
* @deprecated use config.cacheHandler instead
*/
Expand Down Expand Up @@ -904,6 +909,7 @@ export const defaultConfig: NextConfig = {
missingSuspenseWithCSRBailout: true,
optimizeServerReact: false,
useEarlyImport: false,
mergeCssChunks: true,
},
}

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