PostHog/posthog-js posthog-js@1.386.5 on GitHub

1.386.5

#3801 bd06ac7 Thanks @ksvat! - fix(replay): prevent silent recorder teardown on session-id rotation. When the session id rotates during active rrweb capture, _updateWindowAndSessionIds calls stop() then synchronously start('session_id_changed'). If stop() took the _stopAfterCompressionQueueDrains path (which fires whenever the compression queue is non-empty — common during steady recording), its async cleanup would later resolve and call _teardown() against the freshly-started recorder, stopping rrweb, removing event listeners, and emptying the V2 trigger-group matchers. From that point on, the recorder's status getter kept reporting active/sampled (the _strategy reference was still set), but rrweb was no longer producing events, no listeners were registered, and no $snapshot data reached the server — the session looked recording-eligible from event metadata yet produced no replay. start() now invalidates the compression-queue state (generation bump plus reset of the stop-in-progress flag and queued-event count), so any pending cleanup from a prior stop() bails at its existing generation check and a later stop() of the new recorder is not mistaken for the old in-progress one. Affects long-running tabs that rotate session id mid-use (idle timeout, session-past-max-length, or posthog.reset()).
(2026-06-11)