Amp 149661 form abandoned

[daniel-graham-amplitude]

Summary

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Note

Medium Risk
Adds new form-abandonment autocapture that attaches pagehide/beforeunload listeners and emits a new event, which could change event volume/behavior in production if enabled. Moderate risk due to new global listeners and new tracking path, but it is gated by shouldTrackAbandoned.

Overview
Adds a new optional autocapture event, [Amplitude] Form Abandoned, emitted when a started form is left without submission (triggered via pagehide/beforeunload) and exposed via the new formInteractions.shouldTrackAbandoned config.

Updates the form interaction tracking plugin to register/remove window-level listeners and track abandonment once per started form, and extends coverage with new Jest tests plus a Playwright e2e page/spec for form-interactions.

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[daniel-graham-amplitude]

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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hasFormAbandoned never resets, blocking repeated abandon tracking

Medium Severity

hasFormAbandoned is set to true in trackFormAbandoned but is never reset to false. After an abandon event fires (e.g., beforeunload that gets canceled by another handler, or pagehide when the page enters bfcache and is later restored), the flag permanently prevents any future Form Abandoned events. Meanwhile, hasFormChanged is reset to false, so a subsequent form change triggers a new Form Started event — creating an asymmetry where forms can be "started" multiple times but only "abandoned" once. The change handler needs to reset hasFormAbandoned when re-engaging with the form.

Additional Locations (1)

• packages/analytics-browser/src/plugins/form-interaction-tracking.ts#L103-L114