NavigationHistoryEntry: dispose event
Baseline
2026
Newly available
Since January 2026, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The dispose event of the NavigationHistoryEntry interface is fired when the entry is no longer part of the history entry list.
Disposal occurs when:
- Forward history entries are cleared. See the example at Notifications on entry disposal for more information.
- The user clears their browser history using settings or provided UI controls.
- The history limit is exceeded. This is not specified anywhere, but browsers tend to have a history limit of 50 pages.
Syntax
Use the event name in methods like addEventListener(), or set an event handler property.
js
addEventListener("dispose", (event) => { })
ondispose = (event) => { }
Event type
A generic Event.
Examples
js
navigation.addEventListener("currententrychange", () => {
navigation.currentEntry.addEventListener("dispose", disposeHandler);
});
Specifications
| Specification |
|---|
| HTML # handler-navigationhistoryentry-ondispose |