---
slug: origin-trial-tokens
type: pattern
created: 2026-05-12
updated: 2026-05-12
---

# Origin Trial Token Deployment

> **🚧 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.

The operational pattern for a site operator participating in an origin trial: registering at the Chrome Origin Trials portal, receiving a signed token, and including the token in either the `Origin-Trial` HTTP response header or the `<meta http-equiv="origin-trial">` HTML element. The pattern names token scope (origin-bound versus third-party), token expiration, the common failure mode of deploying a token after the trial has expired, and the third-party token mechanism for JavaScript libraries that enable a trial feature on behalf of their embedders.

---

- [Next: Stable as Trust Boundary](stable-trust-boundary.md)
- [Previous: Feature Flag Guarding](feature-flag-guarding.md)