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Replace vendored http-proxy with httpxy#96054

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Replace vendored http-proxy with httpxy#96054
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sebbie/url-parse-deep

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@eps1lon

@eps1lon eps1lon commented Jul 22, 2026

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httpxy is a faster and actively maintained variant of http-proxy. It also doesn't need any manual patches to avoid security vulnerabilities in Next.js.

httpxy is used by Nuxt and maintained by the Nitro team.

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Stats from current PR

🔴 2 regressions

Metric Canary PR Change Trend
Turbo Build Time (cached) 5.342s 5.731s 🔴 +389ms (+7%) ▁▇▂▁▂
Webpack Cold (First Request) 3.395s 3.545s 🔴 +150ms (+4%) ▁▂▂▄▃
📊 All Metrics
📖 Metrics Glossary

Dev Server Metrics:

  • Listen = TCP port starts accepting connections
  • First Request = HTTP server returns successful response
  • Cold = Fresh build (no cache)
  • Warm = With cached build artifacts

Build Metrics:

  • Fresh = Clean build (no .next directory)
  • Cached = With existing .next directory

Change Thresholds:

  • Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
  • Size: Changes < 1KB AND < 1% are insignificant
  • All other changes are flagged to catch regressions

⚡ Dev Server

Metric Canary PR Change Trend
Cold (Listen) 814ms 813ms ▂▇▂▁▂
Cold (Ready in log) 793ms 790ms ▁▇▁▁▁
Cold (First Request) 1.352s 1.352s ▁▇▁▁▁
Warm (Listen) 814ms 813ms ▁▇▂▂▁
Warm (Ready in log) 786ms 780ms ▁▇▁▁▁
Warm (First Request) 1.311s 1.310s ▂▇▁▁▂
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 812ms 813ms ▂▂▂▂▂
Cold (Ready in log) 784ms 791ms ▁▂▂▂▁
Cold (First Request) 3.395s 3.545s 🔴 +150ms (+4%) ▁▂▂▄▃
Warm (Listen) 813ms 814ms ▂▂▂▂▂
Warm (Ready in log) 780ms 789ms ▁▂▁▂▁
Warm (First Request) 3.388s 3.487s ▁▂▁▄▃

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 5.318s 5.359s ▁▇▂▂▂
Cached Build 5.342s 5.731s 🔴 +389ms (+7%) ▁▇▂▁▂
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 25.833s 25.418s ▁▁▁▁▁
Cached Build 25.769s 25.884s ▁▂▁▂▁
node_modules Size 527 MB 527 MB █████
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Server

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Canary PR Change
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page.js gzip 287 kB 287 kB
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Build Details
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Total 718 B 718 B
Build Cache
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Total 5.07 MB 5.06 MB ✅ -7.81 kB

🔄 Shared (bundler-independent)

Runtimes
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📎 Tarball URL
https://vercel-packages.vercel.app/next/commits/13de57048d8f0943b1b9719c4990f2fed367fdca/next

Commit: 13de570

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github-actions Bot commented Jul 22, 2026

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Failing test suites

Commit: 13de570 | About building and testing Next.js

pnpm test-dev test/e2e/testmode/testmode.test.ts (job)

  • testmode > rewrites > should handle rewrites (DD)
Expand output

● testmode › rewrites › should handle rewrites

FetchError: request to http://localhost:37909/rewrite-1 failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/.pnpm/node-fetch@2.6.7_encoding@0.1.13/node_modules/node-fetch/lib/index.js:1491:11)

pnpm test-start test/e2e/testmode/testmode.test.ts (job)

  • testmode > rewrites > should handle rewrites (DD)
Expand output

● testmode › rewrites › should handle rewrites

FetchError: request to http://localhost:40597/rewrite-1 failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/.pnpm/node-fetch@2.6.7_encoding@0.1.13/node_modules/node-fetch/lib/index.js:1491:11)

pnpm test-dev-turbo test/e2e/testmode/testmode.test.ts (turbopack) (job)

  • testmode > rewrites > should handle rewrites (DD)
Expand output

● testmode › rewrites › should handle rewrites

FetchError: request to http://localhost:45055/rewrite-1 failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/.pnpm/node-fetch@2.6.7_encoding@0.1.13/node_modules/node-fetch/lib/index.js:1491:11)

pnpm test-start-turbo test/e2e/testmode/testmode.test.ts (turbopack) (job)

  • testmode > rewrites > should handle rewrites (DD)
Expand output

● testmode › rewrites › should handle rewrites

FetchError: request to http://localhost:37865/rewrite-1 failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/.pnpm/node-fetch@2.6.7_encoding@0.1.13/node_modules/node-fetch/lib/index.js:1491:11)

@eps1lon
eps1lon force-pushed the sebbie/url-parse-deep branch from 8e5d870 to 13de570 Compare July 22, 2026 12:17
const { ProxyServer } =
require('next/dist/compiled/httpxy') as typeof import('next/dist/compiled/httpxy')

const proxy = new ProxyServer({

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Migration to httpxy's ProxyServer without an agent option makes proxied requests use httpxy's default persistent keep-alive HTTP/HTTPS agent, causing socket hang up failures (e.g. testProxy rewrites and next/font/google with proxy tests).

Fix on Vercel

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