parallel/test-inspector-network-fetch is flaky on Windows

[joyeecheung]

Test

test-inspector-network-fetch

Platform

Windows x64

Console output

---
duration_ms: 475.009
exitcode: 1
severity: fail
stack: |-
  Debugger listening on ws://127.0.0.1:57940/8163745a-9438-419c-9a4c-df0723ddd71e
  For help, see: https://nodejs.org/en/docs/inspector
  node:internal/process/promises:332
      triggerUncaughtException(err, true /* fromPromise */);
      ^

  AssertionError [ERR_ASSERTION]: Expected values to be strictly equal:

  400 !== 200

      at verifyResponseReceived (C:\workspace\node-test-binary-windows-js-suites\node\test\parallel\test-inspector-network-fetch.js:112:10)
      at C:\workspace\node-test-binary-windows-js-suites\node\test\parallel\test-inspector-network-fetch.js:148:24
      at process.processTicksAndRejections (node:internal/process/task_queues:105:5) {
    generatedMessage: true,
    code: 'ERR_ASSERTION',
    actual: 400,
    expected: 200,
    operator: 'strictEqual'
  }

  Node.js v25.0.0-pre
...

Build links

• Latest: https://ci.nodejs.org/job/node-test-binary-windows-js-suites/35411/RUN_SUBSET=3,nodes=win2022-COMPILED_BY-vs2022_clang/testReport/junit/(root)/parallel/test_inspector_network_fetch/
• This also has been failing in other forms, see https://github.com/nodejs/reliability/blob/main/reports/2025-07-16.md

Additional information

After the security embargo this has failed most Windows CIs.

The first failure happened in #58077 which seems to be related to the flake itself.

[joyeecheung]

Still flaky in the CI: https://github.com/nodejs/reliability/blob/main/reports/2025-08-26.md

Reason	parallel/test-inspector-network-fetch
Type	JS_TEST_FAILURE
Failed PR	13 (https://github.com/nodejs/node/pull/59567/, https://github.com/nodejs/node/pull/59570/, https://github.com/nodejs/node/pull/59350/, https://github.com/nodejs/node/pull/59579/, https://github.com/nodejs/node/pull/59595/, https://github.com/nodejs/node/pull/58155/, https://github.com/nodejs/node/pull/59283/, https://github.com/nodejs/node/pull/58680/, https://github.com/nodejs/node/pull/59601/, https://github.com/nodejs/node/pull/59616/, https://github.com/nodejs/node/pull/59602/, https://github.com/nodejs/node/pull/59179/, https://github.com/nodejs/node/pull/59603/)
Appeared	test-rackspace-win2019_vs2019-x64-2, test-rackspace-win2022_vs2022-x64-5, test-rackspace-win2022_vs2022-x64-2, test-rackspace-win2019_vs2019-x64-3, test-rackspace-win2022_vs2022-x64-3, test-rackspace-win2022_vs2022-x64-1, test-rackspace-win2019_vs2019-x64-1
First CI	https://ci.nodejs.org/job/node-test-pull-request/68781/
Last CI	https://ci.nodejs.org/job/node-test-pull-request/68867/

Example

not ok 598 parallel/test-inspector-network-fetch
  ---
  duration_ms: 443.96300
  severity: fail
  exitcode: 1
  stack: |-
    Debugger listening on ws://127.0.0.1:58677/62a548b4-800d-4258-a362-7b1d24053ed2
    For help, see: https://nodejs.org/en/docs/inspector
    node:internal/process/promises:332
        triggerUncaughtException(err, true /* fromPromise */);
        ^
    
    AssertionError [ERR_ASSERTION]: Expected values to be strictly equal:
    
    400 !== 200
    
        at verifyResponseReceived (C:\workspace\node-test-binary-windows-js-suites\node\test\parallel\test-inspector-network-fetch.js:112:10)
        at C:\workspace\node-test-binary-windows-js-suites\node\test\parallel\test-inspector-network-fetch.js:148:24
        at process.processTicksAndRejections (node:internal/process/task_queues:105:5) {
      generatedMessage: true,
      code: 'ERR_ASSERTION',
      actual: 400,
      expected: 200,
      operator: 'strictEqual',
      diff: 'simple'
    }
    
    Node.js v25.0.0-pre
  ...