Permissions-Policy: web-share

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 HTTP Permissions-Policy header web-share directive controls whether the current document is allowed to use the Navigator.share() method of the Web Share API to share text, links, images, and other content to arbitrary destinations of the user's choice.

Specifically, where a defined policy blocks usage of this feature, Navigator.share() calls will return a Promise that rejects with a DOMException of type NotAllowedError.

Syntax

http
Permissions-Policy: web-share=<allowlist>;
<allowlist>

A list of origins for which permission is granted to use the feature. See Permissions-Policy > Syntax for more details.

Default policy

The default allowlist for web-share is self.

Specifications

Specification
Web Share API
# permissions-policy

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
web-share
Experimental

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 implementation notes.

See also