HTMLGeolocationElement: promptaction event

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The promptaction event of the HTMLGeolocationElement interface is fired whenever the user activates the <geolocation> element and selects an option from the resulting dialog, either to grant or deny geolocation permission.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

js
addEventListener("promptaction", (event) => { })

onpromptaction = (event) => { }

Event type

An Event.

Examples

Using promptaction to respond to user permission choices

In our Embedded map demo (source code), we use a promptaction event handler to respond to the user making a choice in the <geolocation> permission prompt:

js
geo.addEventListener("promptaction", notifyUserGrantPermission);

In the notifyUserGrantPermission() function, we use the HTMLGeolocationElement.permissionStatus property to check whether the permission status is denied or prompt and if so, we ask the user to press the button again and allow location. We don't need to ask this if they already granted permission.

js
function notifyUserGrantPermission() {
  if (geo.permissionStatus === "denied" || geo.permissionStatus === "prompt") {
    statusElem.textContent =
      'Please press the "Use location" button again and allow location for this site.';
  }
}

See the main HTMLGeolocationElement page for a full walkthrough of this example.

Specifications

Specification
The HTML Geolocation Element
# dom-inpagepermissionmixin-onpromptaction

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
promptaction event
Experimental
Chrome – Full support
Chrome 144 (Release date: 2026-01-13)
footnote Full support
Edge – Full support
Edge 144 (Release date: 2026-01-21)
footnote Full support
Firefox – No support
Firefox
footnote No support
Opera – Full support
Opera 128 (Release date: 2026-02-26)
footnote Full support
Safari – No support
Safari
footnote No support
Chrome Android – Full support
Chrome Android 144 (Release date: 2026-01-13)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 95 (Release date: 2026-02-11)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote No support
Samsung Internet – No support
Samsung Internet
footnote No support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – No support
WebView on iOS
footnote No support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.

See also