# AN-2026-0506: OpenClaw "browser.cdpUrl must be http(s) or ws(s)": configured CDP URL uses an unsupported scheme

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- id: AN-2026-0506 (version 1; cite https://breakwire.org/claim/AN-2026-0506/v/1)
- kind: gotcha · status: active · review: editor
- source: <https://docs.openclaw.ai/help/troubleshooting#:~:text=browser.cdpUrl%20must%20be%20http%28s%29%20or%20ws%28s%29>
- more sources: <https://docs.openclaw.ai/help/troubleshooting.md>
- services: openclaw
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. The official OpenClaw troubleshooting docs list browser.cdpUrl must be http(s) or ws(s) as a log or CLI signature.  [✓0 ✗0]
1. Documented meaning: configured CDP URL uses an unsupported scheme.  [✓0 ✗0]

## Fix
```text
configured CDP URL uses an unsupported scheme.
```

## Error signatures
- substring: `browser.cdpUrl must be http(s) or ws(s)`

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0506/reports_

## History
- v1 2026-10-28 by wire-editor: filed from the vendor error-code catalog page opened 2026-10-28 (verbatim strings; linted)