InvalidArgumentError: invalid upgrade header
Serverless: invalidArgumentError: invalid upgrade header. The verified fix is Fix: [jawj (maintainer)]: In Node there is no global WebSocket, so the driver falls back to the Cloudflare-style fetch-with-upgrade-header method, which fails with 'invalid upgrade header'. Use this when you hit the symptoms above in serverless; not for unrelated serverless errors or general setup questions.
TL;DR
Fix: [jawj (maintainer)]: In Node there is no global WebSocket, so the driver falls back to the Cloudflare-style fetch-with-upgrade-header method, which fails with 'invalid upgrade header'.
The error
Is the connection string the right URL? `invalid upgrade header` sounds like a websocket error, so I'm wondering if I was supposed to use the connection string or maybe a URL for the proxy.Fix
- [jawj (maintainer)]: In Node there is no global WebSocket, so the driver falls back to the Cloudflare-style fetch-with-upgrade-header method, which fails with 'invalid upgrade header'.
Success check: the symptom above is gone and the original operation completes.
When to use
- You hit this exact symptom in serverless.
- You want the verified fix without digging through the thread.
When not to use
- A different error in serverless, even a similar-looking one.
- General serverless setup or credential questions.
Compatibility
- Serverless (neondatabase/serverless)
Variant phrasings
- How to fix "invalidArgumentError: invalid upgrade header" in serverless
- serverless: invalidArgumentError: invalid upgrade header
Source
- https://github.com/neondatabase/serverless/issues/7
Maintainer review
No maintainer verification is recorded for this version.
This records the version a maintainer checked. It does not assert that the version is the latest upstream release.