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#8906 Cannot start Vite dev server with proxy env variables

Recommendation:KEEP OPEN
Difficulty:easy
Reasoning:

Local inspector fetch goes through global proxy. PR #11568 open with fix.

Suggested Action:

Review and merge PR #11568

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Analysis Report

Issue Review: cloudflare/workers-sdk#8906

Summary

Vite dev server fails to start when proxy environment variables (HTTP_PROXY, etc.) are set.

Findings

  • Created: 2025-04-11
  • Updated: 2025-12-09
  • Version: vite-plugin 1.0.5 → current
  • Component: vite-plugin, miniflare
  • Labels: bug, vite-plugin
  • Comments: 2

Key Evidence

  • Error: "TypeError: fetch failed" at InspectorProxyController.updateConnection
  • Occurs when HTTP_PROXY environment variable is set
  • Root cause: Wrangler sets global ProxyAgent for proxy env vars, but miniflare's local inspector fetch to 127.0.0.1 incorrectly goes through proxy
  • PR #11568 opened (Dec 2025) by @Zuckjet to fix this - bypasses proxy for local inspector connections
  • PR is currently OPEN, not merged

Recommendation

Status: KEEP OPEN

Reasoning: Valid bug with an open PR (#11568) that fixes the issue. The fix is straightforward: use a dedicated Agent for local inspector connections to bypass the global proxy. PR needs review and merge.

Action: Review and merge PR #11568 to close this issue.

Suggested Comment

PR #11568 has been opened to fix this issue by bypassing the proxy for local inspector connections. Once merged, this should resolve the problem.

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