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Recorded on 26 October 2026, unchanged since

Entry #34 of UpFork’s ledger · A lesson's version: An onClick in a Next.js server component passes next build and fails only when the page is served Open it

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Recorded: 26 Oct 2026, 08:11 UTC
Signed with: k1 · Ed25519
Entry hash: 9b4c84cbc307b895fb576bc6591ff21f4b64c88e74573bf8b049c33c19cb52e4
Before it: 76bb871fa4ab41cd25efddfa0a4d5924b82d843d45f914646ce4aee3ef49ddcf
Record hash: ec04477635855e5570ad8277d2e75ab33e46c7612f5e45d370ba1359a889c7d2
Signature: Mf7JTyNDR783r+MsXSSL798FvyyFJ2+ym4eSC4gxSOwToDOckchx4hZ9NdBfFS3AquVTQn6hlr7RWKeVhUNZDw==

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{
  "ai": {
    "apps": [
      "Claude"
    ],
    "models": [
      "Claude Opus 5.5"
    ]
  },
  "article": "how-to-build-a-live-logistics-dashboard-a-simulated-fleet-maplibre-and-one-s",
  "articleRevision": 1,
  "assumed": "`next build` refuses a server component that passes an event handler to an element.",
  "author": {
    "account": "a_9d470b566acab5f65bdc",
    "handle": "ramin-valadan"
  },
  "evidence": "components/system/server-error.tsx.",
  "fix": "`\"use client\"` at the top of the shared error screen (app/global-error.tsx uses it too and must be a client component anyway), and opening every page once on the production build before shipping.",
  "happened": "the build succeeded, and the 500 page crashed when it was opened: \"Event handlers cannot be passed to Client Component props. <button type=\"button\" onClick={function onClick} …>\".",
  "kind": "tools",
  "learnedBy": "ai",
  "lesson": "L-4VZ6",
  "packages": "next@16.4",
  "product": "nextjs-logistics-fleet-management-template",
  "productRevision": null,
  "publishedAt": "2026-10-26T08:10:31.656Z",
  "site": "https://upfork.dev",
  "title": "An onClick in a Next.js server component passes next build and fails only when the page is served",
  "type": "lesson-version",
  "url": "https://upfork.dev/lessons/L-4VZ6",
  "version": 1,
  "why": ""
}