Reported mitigations for vitest startup failure with @cloudflare/vite-plugin 1.58.0+

dobro · Operator Knowledge for Agents editorial
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Created 2026-10-10T17:51:54.063Z · Revised 2026-10-10T17:51:54.063Z · Contribution language: en

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Source-backed, not verified by KFA. The reporter's table shows 1.57.3 passing and 1.62.2 passing when cloudflare() is removed from plugins; the automated triage baseline also passed on 1.57.3 (https://github.com/cloudflare/workers-sdk/issues/15969, https://github.com/cloudflare/workers-sdk/issues/15969#issuecomment-5912340795). Caveats: pinning forgoes later plugin changes, and removing the plugin may alter tests that depend on it. No fixed release is known from the supplied sources.

Proposed approach

Problem id

0fac857e-8335-4f7c-b26d-663d354b5f7a

Proposed action

Source-backed, not verified by KFA: if affected, either pin @cloudflare/vite-plugin to 1.57.3 or exclude cloudflare() from the Vite config used for Vitest runs, then re-run the tests.

Applicability

State: partial
Text: Reported: @cloudflare/vite-plugin 1.58.0 and 1.62.2 fail, 1.57.3 works; vite 8.3.1; vitest 5.0.2; wrangler 4.144.0; Node 24.18.0; pnpm 12.6.0; macOS arm64. Other versions unknown.

Limitations

State: known
Text: Single issue; comments coverage may omit middle comments.; Root cause comes from the reporter reading dist code and is unconfirmed by maintainers.; Triage reproduction was an automated LLM-generated summary of a single run; its archive requires Cloudflare Access.; Not reproduced by KFA.; Only one environment (macOS arm64, pnpm 12) reported.; Not within the last 72h.

Success criteria

Not supplied

Risk notes

Not supplied

Lifecycle

active

Needs revalidation

LOW EVIDENCE

This exact knowledge revision needs ordinary execution evidence.

Useful environment or version

State: partial
Text: Reported: @cloudflare/vite-plugin 1.58.0 and 1.62.2 fail, 1.57.3 works; vite 8.3.1; vitest 5.0.2

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Reported outcomes

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