[metadata] add option of configuring ua of async metadata

[huozhi]

What

Introduce an experimental config experimental.htmlLimitedBots (type Regex) which can used for controlling the metadata streaming behavior for different bots, if the bots user agent is matching the regex, it will serve blocking metadata forcedly. This gives users some control to opt-out streaming metadata for some clients or bots which cannot handle it.

Output another manifest response-config-manfiest.json containing the customized UA, which is potentially used for the platform serving Next.js to control the returned response for certain UA. But it's mostly for PPR case which we'll tackle later.

Closes NDX-635
Closes NDX-599

[huozhi]

• [metadata] add option of configuring ua of async metadata #74594 👈 (View in Graphite)
• [metadata] initial support of streaming metadata #74619
• canary

This stack of pull requests is managed by Graphite. Learn more about stacking.

[ijjk]

Failing test suites

Commit: 64914df

pnpm test-dev-turbo test/development/acceptance-app/ReactRefreshRequire.test.ts (turbopack)

• ReactRefreshRequire app > propagates a hot update to closest accepted module

Expand output

● ReactRefreshRequire app › propagates a hot update to closest accepted module

expect(received).toEqual(expected) // deep equality

- Expected  - 0
+ Received  + 1

  Array [
    "init FooV1",
+   "init FooV1",
    "init BarV3",
  ]

  142 |       `
  143 |     )
> 144 |     expect(await session.evaluate(() => (window as any).log)).toEqual([
      |                                                               ^
  145 |       // // FIXME: Metro order:
  146 |       // 'init BarV3',
  147 |       // 'init FooV1',

  at Object.toEqual (development/acceptance-app/ReactRefreshRequire.test.ts:144:63)

Read more about building and testing Next.js in contributing.md.

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
buildDuration	36.4s	34.1s	N/A
buildDurationCached	29.2s	24.7s	N/A
nodeModulesSize	417 MB	417 MB	N/A
nextStartRea..uration (ms)	949ms	775ms	N/A

Client Bundles (main, webpack)

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
5306-HASH.js gzip	53.3 kB	53.4 kB	N/A
8276.HASH.js gzip	169 B	168 B	N/A
8377-HASH.js gzip	5.44 kB	5.44 kB	N/A
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framework-HASH.js gzip	57.5 kB	57.5 kB	N/A
main-app-HASH.js gzip	240 B	242 B	N/A
main-HASH.js gzip	34.1 kB	34.2 kB	N/A
webpack-HASH.js gzip	1.71 kB	1.71 kB	N/A
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Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
polyfills-HASH.js gzip	39.4 kB	39.4 kB	✓
Overall change	39.4 kB	39.4 kB	✓

Client Pages

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_app-HASH.js gzip	193 B	193 B	✓
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amp-HASH.js gzip	512 B	510 B	N/A
css-HASH.js gzip	343 B	342 B	N/A
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hooks-HASH.js gzip	393 B	392 B	N/A
image-HASH.js gzip	4.57 kB	4.57 kB	N/A
index-HASH.js gzip	268 B	268 B	✓
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withRouter-HASH.js gzip	323 B	326 B	N/A
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
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Client Build Manifests

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
_buildManifest.js gzip	749 B	747 B	N/A
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Rendered Page Sizes

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
index.html gzip	522 B	523 B	N/A
link.html gzip	538 B	537 B	N/A
withRouter.html gzip	518 B	520 B	N/A
Overall change	0 B	0 B	✓

Edge SSR bundle Size Overall increase ⚠️

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
edge-ssr.js gzip	128 kB	129 kB	⚠️ +212 B
page.js gzip	207 kB	207 kB	⚠️ +140 B
Overall change	335 kB	336 kB	⚠️ +352 B

Middleware size

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
middleware-b..fest.js gzip	671 B	670 B	N/A
middleware-r..fest.js gzip	155 B	156 B	N/A
middleware.js gzip	31.2 kB	31.2 kB	N/A
edge-runtime..pack.js gzip	844 B	844 B	✓
Overall change	844 B	844 B	✓

Next Runtimes

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
274-experime...dev.js gzip	322 B	322 B	✓
274.runtime.dev.js gzip	314 B	314 B	✓
app-page-exp...dev.js gzip	369 kB	368 kB	N/A
app-page-exp..prod.js gzip	130 kB	130 kB	N/A
app-page-tur..prod.js gzip	142 kB	142 kB	N/A
app-page-tur..prod.js gzip	138 kB	138 kB	✓
app-page.run...dev.js gzip	357 kB	355 kB	N/A
app-page.run..prod.js gzip	126 kB	126 kB	✓
app-route-ex...dev.js gzip	37.6 kB	37.6 kB	✓
app-route-ex..prod.js gzip	25.6 kB	25.6 kB	✓
app-route-tu..prod.js gzip	25.6 kB	25.6 kB	✓
app-route-tu..prod.js gzip	25.4 kB	25.4 kB	✓
app-route.ru...dev.js gzip	39.2 kB	39.2 kB	✓
app-route.ru..prod.js gzip	25.4 kB	25.4 kB	✓
pages-api-tu..prod.js gzip	9.69 kB	9.69 kB	✓
pages-api.ru...dev.js gzip	11.6 kB	11.6 kB	✓
pages-api.ru..prod.js gzip	9.68 kB	9.68 kB	✓
pages-turbo...prod.js gzip	21.7 kB	21.7 kB	N/A
pages.runtim...dev.js gzip	27.5 kB	27.5 kB	N/A
pages.runtim..prod.js gzip	21.7 kB	21.7 kB	N/A
server.runti..prod.js gzip	916 kB	916 kB	N/A
Overall change	474 kB	474 kB	✓

build cache

	vercel/next.js canary	vercel/next.js huozhi/01-07-streaming_metadata_config	Change
0.pack gzip	2.1 MB	2.09 MB	N/A
index.pack gzip	75.7 kB	75.5 kB	N/A
Overall change	0 B	0 B	✓

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${renderOpts.page}`,attributes:{"next.route":renderOpts.page}},async()=>renderDocument());if(!documentResult)return new RenderResult(null,{metadata});let dynamicImportsIds=new Set,dynamicImports=new Set;for(let mod of reactLoadableModules){let manifestItem=reactLoadableManifest[mod];manifestItem&&(dynamicImportsIds.add(manifestItem.id),manifestItem.files.forEach(item=>{dynamicImports.add(item)}))}let hybridAmp=ampState.hybrid,docComponentsRendered={},{assetPrefix,defaultLocale,disableOptimizedLoading,domainLocales,locale,locales,runtimeConfig}=renderOpts,htmlProps={__NEXT_DATA__:{props,page:pathname,query,buildId:sharedContext.buildId,assetPrefix:""===assetPrefix?void 0:assetPrefix,runtimeConfig,nextExport:!0===nextExport||void 0,autoExport:!0===isAutoExport||void 0,isFallback,isExperimentalCompile,dynamicIds:0===dynamicImportsIds.size?void 0:Array.from(dynamicImportsIds),err:renderOpts.err?(err=renderOpts.err,dev?(source="server",source=err[symbolError]||"server",{name:err.name,source,message:strip_ansi_default()(err.message),stack:err.stack,digest:err.digest}):{name:"Internal Server Error.",message:"500 - Internal Server Error.",statusCode:500}):void 0,gsp:!!getStaticProps||void 0,gssp:!!getServerSideProps||void 0,customServer:sharedContext.customServer,gip:!!hasPageGetInitialProps||void 0,appGip:!defaultAppGetInitialProps||void 0,locale,locales,defaultLocale,domainLocales,isPreview:!0===isPreview||void 0,notFoundSrcPage:notFoundSrcPage&&dev?notFoundSrcPage:void 0},strictNextHead:renderOpts.strictNextHead,buildManifest:filteredBuildManifest,docComponentsRendered,dangerousAsPath:router.asPath,canonicalBase:!renderOpts.ampPath&&request_meta_getRequestMeta(req,"didStripLocale")?`${renderOpts.canonicalBase||""}/${renderOpts.locale}`:renderOpts.canonicalBase,ampPath,inAmpMode,isDevelopment:!!dev,hybridAmp,dynamicImports:Array.from(dynamicImports),dynamicCssManifest:new Set(renderOpts.dynamicCssManifest||[]),assetPrefix,unstable_runtimeJS:void 0,unstable_JsPreload:pageConfig.unstable_JsPreload,assetQueryString,scriptLoader,locale,disableOptimizedLoading,head:documentResult.head,headTags:documentResult.headTags,styles:documentResult.styles,crossOrigin:renderOpts.crossOrigin,optimizeCss:renderOpts.optimizeCss,nextConfigOutput:renderOpts.nextConfigOutput,nextScriptWorkers:renderOpts.nextScriptWorkers,runtime:globalRuntime,largePageDataBytes:renderOpts.largePageDataBytes,nextFontManifest:renderOpts.nextFontManifest,experimentalClientTraceMetadata:renderOpts.experimental.clientTraceMetadata},document=/*#__PURE__*/(0,jsx_runtime_namespaceObject.jsx)(amp_context_shared_runtime_AmpStateContext.Provider,{value:ampState,children:/*#__PURE__*/(0,jsx_runtime_namespaceObject.jsx)(HtmlContext.Provider,{value:htmlProps,children:documentResult.documentElement(htmlProps)})}),documentHTML=await (0,tracer_.getTracer)().trace(trace_constants.vr.renderToString,async()=>renderToString(document));{let nonRenderedComponents=[];for(let comp of["Main","Head","NextScript","Html"])docComponentsRendered[comp]||nonRenderedComponents.push(comp);if(nonRenderedComponents.length){let missingComponentList=nonRenderedComponents.map(e=>`<${e} />`).join(", "),plural=1!==nonRenderedComponents.length?"s":"";console.warn(`Your custom Document (pages/_document) did not render all the required subcomponent${plural}.
 Missing component${plural}: ${missingComponentList}
 Read how to fix here: https://nextjs.org/docs/messages/missing-document-component`)}}let[renderTargetPrefix,renderTargetSuffix]=documentHTML.split("<next-js-internal-body-render-target></next-js-internal-body-render-target>",2),prefix="";documentHTML.startsWith(DOCTYPE)||(prefix+=DOCTYPE),prefix+=renderTargetPrefix,inAmpMode&&(prefix+="\x3c!-- __NEXT_DATA__ --\x3e");let content=prefix+documentResult.contentHTML+renderTargetSuffix;return new RenderResult(await postProcessHTML(pathname,content,renderOpts,{inAmpMode,hybridAmp}),{metadata})}let renderToHTML=(req,res,pathname,query,renderOpts,sharedContext,renderContext)=>renderToHTMLImpl(req,res,pathname,query,renderOpts,renderOpts,sharedContext,renderContext),ServerInsertedHTMLContext=/*#__PURE__*/external_react_default().createContext(null);function useServerInsertedHTML(callback){let addInsertedServerHTMLCallback=(0,external_react_namespaceObject.useContext)(ServerInsertedHTMLContext);addInsertedServerHTMLCallback&&addInsertedServerHTMLCallback(callback)}class PagesRouteModule extends RouteModule{constructor(options){super(options),this.components=options.components}render(req,res,context){return renderToHTMLImpl(req,res,context.page,context.query,context.renderOpts,{App:this.components.App,Document:this.components.Document},context.sharedContext,context.renderContext)}}let vendored={contexts:entrypoints_namespaceObject},pages_module=PagesRouteModule})(),module.exports=__webpack_exports__})();
 //# sourceMappingURL=pages.runtime.dev.js.map
\ No newline at end of file

Diff for pages.runtime.prod.js

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Diff for server.runtime.prod.js

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Commit: 64914df

[vercel]

Notifying the following users due to files changed in this PR based on this repo's notify modifiers:

@timneutkens, @ijjk, @shuding:

packages/next/src/server/config.ts