---
slug: zombie-origin-trial
type: antipattern
created: 2026-05-12
updated: 2026-05-12
---

# Zombie Origin Trial

> **🚧 Forthcoming**
>
> This article is a placeholder. Only its topic and title are committed at this stage; the substantive body will be drafted in a future cycle of the engine.

An origin trial that was supposed to end — the trial period expired, the Intent to Ship was never filed, or the feature was abandoned — but whose code remains in the browser with the gate technically present and whose tokens continue to function because the Chrome team did not disable the trial server-side. Sites that built on the feature continue to work without support or stability guarantees, and the browser carries dead trial code that increases binary size and maintenance burden.

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