---
name: "up.Layer.prototype.history"
area: "API"
kind: "Property"
parent: "up.Layer class"
url: "https://unpoly.com/api/up.Layer.prototype.history"
---
<nav aria-label="Unpoly docs">[All docs](https://unpoly.com/index.md) · [up.Layer class](https://unpoly.com/api/up.Layer.md)</nav>

# up.Layer.prototype.history

Whether this layer has [visible history](https://unpoly.com/learn/history-in-overlays.md).

When it does, fragment updates within this layer can change the browser's address bar and window title. If a layer does not have visible history, its descendant layers cannot have visible history either.

<nav aria-label="Guides">

- [Learn: History in overlays](https://unpoly.com/learn/history-in-overlays.md)

</nav>

---

## Value {#value}

### history {#history}

Whether this layer has visible history.

Type: boolean