Web features explorer - Navigation precommit handlers

Web features explorer

The precommitHandler callback option to NavigateEvent's intercept() method returns a promise that defers navigation until the promise resolves. You can use this to change the navigation's URL, state, and history before navigation occurs.

Browser support

Chrome 146 Released on 2026-03-10
Chrome Android 146 Released on 2026-03-10
Edge 146 Released on 2026-03-13
Firefox 148 Released on 2026-02-24
Firefox for Android 148 Released on 2026-02-24
Safari Not supported
Safari on iOS Not supported

Baseline availability blocked since March 2026 by Safari (4 months)

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MDN documentation

Specifications

HTML (#dom-navigationinterceptoptions-precommithandler), from HTML Workstream (WHATWG).

Interop

Included in Interop 2026

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