Error: Configuration file for Pages projects does not support "assets"

[brillout]

With:

// wrangler.jsonc
{
  "$schema": "node_modules/wrangler/config-schema.json",
  "name": "my-vike-cloudflare-app",
  "compatibility_date": "2025-08-04",
  "pages_build_output_dir": "./dist/cloudflare",
  "assets": {
    "directory": "./dist/cloudflare"
  }
}

I get this error upon running pnpm run deploy at examples/react-full/:

~/code/vike/examples/react-full (brillout/vike-cloudflare-repro-2$|u-1) pnpm run deploy

> @ deploy /home/rom/code/vike/examples/react-full
> vike build && cross-env NODE_ENV=production wrangler pages deploy

vite v6.3.5 building for production...
✓ 213 modules transformed.
dist/client/.vite/manifest.json                                       5.38 kB │ gzip:  0.80 kB
dist/client/assets/static/logo.BDQBhfUN.svg                           5.78 kB │ gzip:  1.97 kB
dist/client/assets/static/renderer_Layout-031b266d.CEjdw0pU.css       0.09 kB │ gzip:  0.10 kB
dist/client/assets/static/renderer_css_index-e8e12f67.Cy_hbeh9.css    1.20 kB │ gzip:  0.64 kB
dist/client/assets/chunks/chunk-C5zpkoOT.js                           0.10 kB │ gzip:  0.11 kB
dist/client/assets/entries/pages_markdown_client.CUlwMEfA.js          0.11 kB │ gzip:  0.11 kB
dist/client/assets/chunks/chunk-YLpSSqkV.js                           0.17 kB │ gzip:  0.17 kB
dist/client/assets/entries/entry-client-routing.CnEt2cJ2.js           1.57 kB │ gzip:  0.78 kB
dist/client/assets/entries/pages_error.CXs7osbI.js                    2.29 kB │ gzip:  0.72 kB
dist/client/assets/entries/pages_star-wars_index.ClYenexS.js          2.50 kB │ gzip:  0.78 kB
dist/client/assets/entries/pages_markdown.8yvOmu7n.js                 2.74 kB │ gzip:  0.79 kB
dist/client/assets/entries/pages_hello.CnW6-TfP.js                    2.96 kB │ gzip:  0.86 kB
dist/client/assets/entries/pages_index.CGWHsQtq.js                    2.97 kB │ gzip:  1.02 kB
dist/client/assets/entries/pages_star-wars_-id.Bxlfl9xI.js            2.98 kB │ gzip:  0.91 kB
dist/client/assets/chunks/chunk-CrODjufB.js                          15.38 kB │ gzip:  6.02 kB
dist/client/assets/chunks/chunk-CvmsPrHN.js                          68.86 kB │ gzip: 21.54 kB
dist/client/assets/chunks/chunk-zc94hnnJ.js                         189.14 kB │ gzip: 59.54 kB
✓ built in 2.72s
vite v6.3.5 building SSR bundle for production...
✓ 358 modules transformed.
dist/server/package.json                                              0.02 kB
dist/server/assets/static/logo.BDQBhfUN.svg                           5.78 kB
dist/server/.vite/manifest.json                                       6.50 kB
dist/server/assets/static/renderer_Layout-031b266d.CEjdw0pU.css       0.09 kB
dist/server/assets/static/renderer_css_index-e8e12f67.Cy_hbeh9.css    1.20 kB
dist/server/index.js                                                  0.19 kB
dist/server/chunks/chunk-h7NLwdV9.js                                  0.22 kB
dist/server/chunks/chunk-CKz07A4Z.js                                  0.24 kB
dist/server/chunks/chunk-D5uwXWmD.js                                  0.28 kB
dist/server/chunks/chunk-m4DI4yCI.js                                  0.40 kB
dist/server/chunks/chunk-BiDxQ5Y7.js                                  1.34 kB
dist/server/entries/pages_error.mjs                                   2.50 kB
dist/server/entries/pages_index.mjs                                   2.98 kB
dist/server/entries/pages_star-wars_-id.mjs                           3.39 kB
dist/server/entries/pages_markdown.mjs                                3.56 kB
dist/server/entries/pages_hello.mjs                                   4.99 kB
dist/server/entries/pages_star-wars_index.mjs                         5.92 kB
dist/server/entry.mjs                                                 9.01 kB
dist/server/cloudflare-worker.mjs                                    65.20 kB
dist/server/chunks/chunk-B_0AnYpi.js                                166.14 kB
dist/server/chunks/chunk-rtfSF20Q.js                                183.29 kB
dist/server/chunks/chunk-C75y2uQ7.js                                492.29 kB
✓ built in 3.23s

 ⛅️ wrangler 4.27.0
───────────────────

✘ [ERROR] Running configuration file validation for Pages:

    - Configuration file for Pages projects does not support "assets"


🪵  Logs were written to "/home/rom/.wrangler/logs/wrangler-2025-08-04_20-19-42_852.log"
 ELIFECYCLE  Command failed with exit code 1.

---

And with:

// wrangler.jsonc
{
  "$schema": "node_modules/wrangler/config-schema.json",
  "name": "my-vike-cloudflare-app",
  "compatibility_date": "2025-08-04",
  "pages_build_output_dir": "./dist/cloudflare"
}

I get this error upon running pnpm exec test-e2e .test-preview.test.ts at examples/react-full/:

~/code/vike/examples/react-full (brillout/vike-cloudflare-repro-2$|u=) pnpm exec test-e2e .test-preview.test.ts 
🟢 Launch Browser

 BOOT  /home/rom/code/vike/examples/react-full/.test-preview.test.ts
🟢 [run] npm run preview
🔴 [test] page content is rendered to HTML
 FAIL  /home/rom/code/vike/examples/react-full/.test-preview.test.ts
Test  FAIL  because the test "page content is rendered to HTML" threw an error, see below. [TEST_FAIL]
vvvvvvvvvvvvvvvvvvv
vvvvvv ERROR vvvvvv
vvvvvvvvvvvvvvvvvvv
AssertionError: expected '' to include '<h1>Welcome to Vike</h1>'
    at Proxy.<anonymous> (file:///home/rom/code/vike/node_modules/.pnpm/@brillout+test-e2e@0.6.16/node_modules/@brillout/test-e2e/dist/chai/JestChaiExpect.js:7:21)
    at Proxy.methodWrapper (/home/rom/code/vike/node_modules/.pnpm/chai@4.5.0/node_modules/chai/lib/chai/utils/addMethod.js:57:25)
    at .testRun.ts:20:18
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at file:///home/rom/code/vike/node_modules/.pnpm/@brillout+test-e2e@0.6.16/node_modules/@brillout/test-e2e/dist/runAll.js:246:13 {
  showDiff: false,
  actual: '',
  expected: undefined,
  operator: 'strictEqual'
}
vvvvvvvvvvvvvvvvvvvvvv
vvvvvv ALL LOGS vvvvvv
vvvvvvvvvvvvvvvvvvvvvv
[22:22:09.132][/][npm run preview][Playwright] api => browser.newPage started
[22:22:09.187][/][npm run preview][Playwright] api <= browser.newPage succeeded
[22:22:09.188][/][npm run preview][run()] Spawn command `npm run preview`
[22:22:09.355][/][npm run preview][stdout] > preview
> vike build && cross-env NODE_ENV=production wrangler pages dev --port 3000
[22:22:10.539][/][npm run preview][stdout] vite v6.3.5 building for production...
[22:22:10.596][/][npm run preview][stdout] transforming...
[22:22:12.750][/][npm run preview][stdout] ✓ 213 modules transformed.
[22:22:12.909][/][npm run preview][stdout] rendering chunks...
[22:22:13.018][/][npm run preview][stdout] computing gzip size...
[22:22:13.030][/][npm run preview][stdout] dist/client/.vite/manifest.json                                       5.38 kB │ gzip:  0.80 kB
[22:22:13.030][/][npm run preview][stdout] dist/client/assets/static/logo.BDQBhfUN.svg                           5.78 kB │ gzip:  1.97 kB
dist/client/assets/static/renderer_Layout-031b266d.CEjdw0pU.css       0.09 kB │ gzip:  0.10 kB
[22:22:13.031][/][npm run preview][stdout] dist/client/assets/static/renderer_css_index-e8e12f67.Cy_hbeh9.css    1.20 kB │ gzip:  0.64 kB
[22:22:13.031][/][npm run preview][stdout] dist/client/assets/chunks/chunk-C5zpkoOT.js                           0.10 kB │ gzip:  0.11 kB
dist/client/assets/entries/pages_markdown_client.CUlwMEfA.js          0.11 kB │ gzip:  0.11 kB
[22:22:13.031][/][npm run preview][stdout] dist/client/assets/chunks/chunk-YLpSSqkV.js                           0.17 kB │ gzip:  0.17 kB
dist/client/assets/entries/entry-client-routing.CnEt2cJ2.js           1.57 kB │ gzip:  0.78 kB
dist/client/assets/entries/pages_error.CXs7osbI.js                    2.29 kB │ gzip:  0.72 kB
dist/client/assets/entries/pages_star-wars_index.ClYenexS.js          2.50 kB │ gzip:  0.78 kB
dist/client/assets/entries/pages_markdown.8yvOmu7n.js                 2.74 kB │ gzip:  0.79 kB
dist/client/assets/entries/pages_hello.CnW6-TfP.js                    2.96 kB │ gzip:  0.86 kB
[22:22:13.031][/][npm run preview][stdout] dist/client/assets/entries/pages_index.CGWHsQtq.js                    2.97 kB │ gzip:  1.02 kB
dist/client/assets/entries/pages_star-wars_-id.Bxlfl9xI.js            2.98 kB │ gzip:  0.91 kB
dist/client/assets/chunks/chunk-CrODjufB.js                          15.38 kB │ gzip:  6.02 kB
dist/client/assets/chunks/chunk-CvmsPrHN.js                          68.86 kB │ gzip: 21.54 kB
[22:22:13.031][/][npm run preview][stdout] dist/client/assets/chunks/chunk-zc94hnnJ.js                         189.14 kB │ gzip: 59.54 kB
[22:22:13.031][/][npm run preview][stdout] ✓ built in 2.46s
[22:22:13.032][/][npm run preview][stdout] vite v6.3.5 building SSR bundle for production...
[22:22:13.042][/][npm run preview][stdout] transforming...
[22:22:15.437][/][npm run preview][stdout] ✓ 358 modules transformed.
[22:22:15.579][/][npm run preview][stdout] rendering chunks...
[22:22:15.711][/][npm run preview][stdout] dist/server/package.json                                              0.02 kB
[22:22:15.711][/][npm run preview][stdout] dist/server/assets/static/logo.BDQBhfUN.svg                           5.78 kB
dist/server/.vite/manifest.json                                       6.50 kB
dist/server/assets/static/renderer_Layout-031b266d.CEjdw0pU.css       0.09 kB
dist/server/assets/static/renderer_css_index-e8e12f67.Cy_hbeh9.css    1.20 kB
dist/server/index.js                                                  0.19 kB
dist/server/chunks/chunk-h7NLwdV9.js                                  0.22 kB
dist/server/chunks/chunk-CKz07A4Z.js                                  0.24 kB
dist/server/chunks/chunk-D5uwXWmD.js                                  0.28 kB
dist/server/chunks/chunk-m4DI4yCI.js                                  0.40 kB
dist/server/chunks/chunk-BiDxQ5Y7.js                                  1.34 kB
[22:22:15.711][/][npm run preview][stdout] dist/server/entries/pages_error.mjs                                   2.50 kB
dist/server/entries/pages_index.mjs                                   2.98 kB
dist/server/entries/pages_star-wars_-id.mjs                           3.39 kB
dist/server/entries/pages_markdown.mjs                                3.56 kB
dist/server/entries/pages_hello.mjs                                   4.99 kB
dist/server/entries/pages_star-wars_index.mjs                         5.92 kB
dist/server/entry.mjs                                                 9.01 kB
dist/server/cloudflare-worker.mjs                                    65.20 kB
[22:22:15.711][/][npm run preview][stdout] dist/server/chunks/chunk-B_0AnYpi.js                                166.14 kB
dist/server/chunks/chunk-rtfSF20Q.js                                183.29 kB
dist/server/chunks/chunk-C75y2uQ7.js                                492.29 kB
[22:22:16.309][/][npm run preview][stdout] ✓ built in 3.28s
[22:22:17.191][/][npm run preview][stdout] ⛅️ wrangler 4.27.0
───────────────────
[22:22:17.355][/][npm run preview][stdout] ✨ Compiled Worker successfully
[22:22:17.775][/][npm run preview][stdout] ⎔ Starting local server...
[22:22:17.953][/][npm run preview][stdout] [wrangler:info] Ready on http://localhost:3000
[22:22:17.954][/][npm run preview][run()] Server is ready.
[22:22:18.958][/][npm run preview][test()] page content is rendered to HTML
[22:22:19.027][/][npm run preview][stdout] [wrangler:info] GET / 404 Not Found (11ms)
Error: Following test files failed, see logs above for more information (search for [TEST_FAIL]):
❌ /home/rom/code/vike/examples/react-full/.test-preview.test.ts
    at closeAll (file:///home/rom/code/vike/node_modules/.pnpm/@brillout+test-e2e@0.6.16/node_modules/@brillout/test-e2e/dist/runAll.js:27:15)
    at runAll (file:///home/rom/code/vike/node_modules/.pnpm/@brillout+test-e2e@0.6.16/node_modules/@brillout/test-e2e/dist/runAll.js:19:5)

Note GET / 404 Not Found — it seems like the assets aren't being served.

Reproduction: vikejs/vike#2605 (branch brillout/vike-cloudflare-repro-2).

[magne4000]

The only thing that I can think of is to have 2 different wrangler config file.
Wrangler config file support for Pages has always been half-baked.
The actual issue probably lies in the fact that we even need assets config in "preview", but it shouldn't even be needed; There seems to be some kind of conflict between Pages mode + local assets + _routes.json exclude rules.

[brillout]

Since Cloudflare Pages is being "deprecated", maybe vike-cloudflare should be using Cloudflare Workers instead of Cloudflare Pages?

[magne4000]

Yes it should. The project was started when Pages was the recommended solution, which didn't last long...