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fix(browser): clarify DevToolsActivePort attach failures

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Peter Steinberger
2026-04-21 08:11:11 +01:00
parent 9f054ee05b
commit 7b1871b99b
4 changed files with 42 additions and 5 deletions
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docs/gateway/troubleshooting.md
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@@ -471,6 +471,7 @@ Common signatures:
- `browser.executablePath not found` → configured path is invalid.
- `browser.cdpUrl must be http(s) or ws(s)` → the configured CDP URL uses an unsupported scheme such as `file:` or `ftp:`.
- `browser.cdpUrl has invalid port` → the configured CDP URL has a bad or out-of-range port.
- `Could not find DevToolsActivePort for chrome` → Chrome MCP existing-session could not attach to the selected browser data dir yet. Open the browser inspect page, enable remote debugging, keep the browser open, approve the first attach prompt, then retry. If signed-in state is not required, prefer the managed `openclaw` profile.
- `No Chrome tabs found for profile="user"` → the Chrome MCP attach profile has no open local Chrome tabs.
- `Remote CDP for profile "<name>" is not reachable` → the configured remote CDP endpoint is not reachable from the gateway host.
- `Browser attachOnly is enabled ... not reachable` or `Browser attachOnly is enabled and CDP websocket ... is not reachable` → attach-only profile has no reachable target, or the HTTP endpoint answered but the CDP WebSocket still could not be opened.