## Summary
- When a module exports `globalThis` (e.g., `module.exports =
globalThis`), Bun's auto-serve detection incorrectly triggered because
`globalThis.fetch` is the Fetch API function
- Scripts that export globalThis (like `core-js/es/global-this.js`)
would start a development server on port 3000 instead of exiting
normally
- Added explicit check to skip auto-serve when the default export is
`globalThis` itself
Fixes#440
## Test plan
- [x] Added test case `test/regression/issue/440.test.ts` that verifies:
- `module.exports = globalThis` does not start a server
- `export default globalThis` does not start a server
- [x] Verified test fails with system Bun (without fix)
- [x] Verified test passes with debug build (with fix)
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Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
