Reduce max header length emitted

[sebmarkbage]

Seems like the default 2000 limit is getting hit. Start more conservative while investigating why. Picked half to start.

[ijjk]

Failing test suites

Commit: 8ddcdf4

pnpm test test/integration/prerender-export/test/index.test.js

Expand output

● Test suite failed to run

thrown: "Exceeded timeout of 60000 ms for a hook.
Add a timeout value to this test to increase the timeout, if this is a long-running test. See https://jestjs.io/docs/api#testname-fn-timeout."

  217 |       })
  218 |
> 219 |       afterAll(async () => {
      |       ^
  220 |         if (app) {
  221 |           await stopApp(app)
  222 |         }

  at afterAll (integration/prerender-export/test/index.test.js:219:7)
  at describe (integration/prerender-export/test/index.test.js:209:5)
  at integration/prerender-export/test/index.test.js:208:52
  at Object.describe (integration/prerender-export/test/index.test.js:207:1)

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

[ijjk]

Stats from current PR

Default Build

General Overall increase ⚠️

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
buildDuration	10.4s	10.5s	N/A
buildDurationCached	5.8s	6.7s	⚠️ +859ms
nodeModulesSize	175 MB	175 MB	⚠️ +1.29 kB
nextStartRea..uration (ms)	413ms	420ms	N/A

Client Bundles (main, webpack)

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
199-HASH.js gzip	29.2 kB	29.3 kB	N/A
3f784ff6-HASH.js gzip	53.2 kB	53.2 kB	✓
494.HASH.js gzip	180 B	181 B	N/A
framework-HASH.js gzip	45.2 kB	45.2 kB	✓
main-app-HASH.js gzip	241 B	239 B	N/A
main-HASH.js gzip	31.7 kB	31.7 kB	N/A
webpack-HASH.js gzip	1.7 kB	1.7 kB	✓
Overall change	100 kB	100 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
_app-HASH.js gzip	194 B	195 B	N/A
_error-HASH.js gzip	182 B	181 B	N/A
amp-HASH.js gzip	504 B	506 B	N/A
css-HASH.js gzip	322 B	323 B	N/A
dynamic-HASH.js gzip	2.5 kB	2.5 kB	✓
edge-ssr-HASH.js gzip	253 B	255 B	N/A
head-HASH.js gzip	348 B	347 B	N/A
hooks-HASH.js gzip	369 B	368 B	N/A
image-HASH.js gzip	4.3 kB	4.3 kB	N/A
index-HASH.js gzip	256 B	256 B	✓
link-HASH.js gzip	2.65 kB	2.65 kB	N/A
routerDirect..HASH.js gzip	311 B	311 B	✓
script-HASH.js gzip	384 B	383 B	N/A
withRouter-HASH.js gzip	307 B	308 B	N/A
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Overall change	3.17 kB	3.17 kB	✓

Client Build Manifests

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
_buildManifest.js gzip	483 B	484 B	N/A
Overall change	0 B	0 B	✓

Rendered Page Sizes

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
index.html gzip	528 B	526 B	N/A
link.html gzip	541 B	540 B	N/A
withRouter.html gzip	524 B	522 B	N/A
Overall change	0 B	0 B	✓

Edge SSR bundle Size

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
edge-ssr.js gzip	92.2 kB	92.2 kB	N/A
page.js gzip	145 kB	145 kB	N/A
Overall change	0 B	0 B	✓

Middleware size

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
middleware-b..fest.js gzip	623 B	625 B	N/A
middleware-r..fest.js gzip	150 B	151 B	N/A
middleware.js gzip	24.8 kB	24.8 kB	✓
edge-runtime..pack.js gzip	1.92 kB	1.92 kB	✓
Overall change	26.7 kB	26.7 kB	✓

Next Runtimes

	vercel/next.js canary	sebmarkbage/next.js maxheaderlength	Change
app-page-exp...dev.js gzip	166 kB	166 kB	N/A
app-page-exp..prod.js gzip	93.4 kB	93.4 kB	N/A
app-page-tur..prod.js gzip	94.1 kB	94.1 kB	N/A
app-page-tur..prod.js gzip	88.8 kB	88.8 kB	N/A
app-page.run...dev.js gzip	136 kB	136 kB	N/A
app-page.run..prod.js gzip	88.1 kB	88.1 kB	N/A
app-route-ex...dev.js gzip	23.5 kB	23.5 kB	✓
app-route-ex..prod.js gzip	16.4 kB	16.4 kB	✓
app-route-tu..prod.js gzip	16.4 kB	16.4 kB	✓
app-route-tu..prod.js gzip	16 kB	16 kB	✓
app-route.ru...dev.js gzip	22.9 kB	22.9 kB	✓
app-route.ru..prod.js gzip	16 kB	16 kB	✓
pages-api-tu..prod.js gzip	9.37 kB	9.37 kB	✓
pages-api.ru...dev.js gzip	9.64 kB	9.64 kB	✓
pages-api.ru..prod.js gzip	9.37 kB	9.37 kB	✓
pages-turbo...prod.js gzip	21.5 kB	21.5 kB	✓
pages.runtim...dev.js gzip	22.2 kB	22.2 kB	✓
pages.runtim..prod.js gzip	21.5 kB	21.5 kB	✓
server.runti..prod.js gzip	48.6 kB	48.6 kB	✓
Overall change	253 kB	253 kB	✓

Diff details

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Diff for app-page-tur..time.prod.js

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Commit: 8ddcdf4