- Add UTM params to all cloud-bound links across README, CLI, and error messages
- Rewrite README Open Source vs Cloud section: position cloud browsers as
recommended pairing for OSS users, remove separate Use Both section
- Rewrite error messages for use_cloud=True and ChatBrowserUse() to clearly
state what is wrong and what to do next
- Add missing URLs: invalid API key now links to key page, insufficient
credits now links to billing page
- Add cloud browser nudge on captcha detection (logger.warning)
- Add cloud browser nudge on local browser launch failure
BrowserSession.on_BrowserStopEvent calls stop_browser() but never calls
_cloud_browser_client.close(), leaving the httpx connection pool alive.
On Lambda provisioned concurrency, these pools accumulate across
invocations — memory climbs from ~1.3GB to the 3GB ceiling over hours,
triggering OOM kills (21 Runtime.ExitError crashes in 6 hours observed
in production).
Changes:
- Call _cloud_browser_client.close() in on_BrowserStopEvent after
stop_browser completes (in a finally block so it runs even if
stop_browser fails)
- Make CloudBrowserClient.close() idempotent (check is_closed before
calling aclose) so it's safe to call multiple times
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Alezander9