PostHog/posthog-js posthog-js@1.433.0

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1.433.0

Minor Changes

• #4916 d037ea1 Thanks @mayteio! - Read Meta's _fbc and _fbp cookies for the Conversions API. When the Meta pixel is on the page, its _fbc cookie holds the true ad click time, so that value now wins over the time PostHog stamps on the pageview that follows the click, and a click that landed before the SDK loaded is no longer lost. The _fbp browser ID is captured as the $fbp person property, which makes it available to a conversion sent later from a backend. Both cookies are read under the same switches as the URL click ID: save_campaign_params: false turns the reads off, and cookieless mode skips them.
  (2026-09-14)