posthog-js@1.402.3

1.402.3

Patch Changes

• #4157 4a2ecf5 Thanks @posthog! - Session recording no longer emits an uncaught NotAllowedError ("Sharing constructed stylesheets in multiple documents is not allowed") when a page assigns a CSSStyleSheet constructed in a different document to adoptedStyleSheets. That assignment is the host page's own invalid operation, but the recorder's patched setter sat on the call stack, so the exception was attributed to rrweb and churned fingerprints in error tracking. The recorder now contains this specific rejection (matched by its standardized NotAllowedError name, so it works even when the setter throws from an iframe realm) and skips recording those sheets, while still re-throwing any other native-setter error so host-page behaviour is preserved.
  (2026-07-15)

• #4158 0dc389e Thanks @posthog! - fix(replay): session recording no longer throws TypeError: Converting circular structure to JSON when replay event data contains a circular reference. The circular-reference guard now also detects cycles that pass through an array, and affected events are captured with [Circular] markers instead of surfacing an unhandled error and being dropped.
  (2026-07-15)

• Updated dependencies [fc2cb2e]:

  • @posthog/core@1.42.1