Headers: Permissions-Policy.summarizer
Permissions-Policy: summarizer directive
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 summarizer directive controls access to the Summarizer API.
Specifically, where a defined policy blocks Summarizer API usage, the Summarizer.availability() static method will return unavailable, and any attempts to call the API's other methods will fail with a NotAllowedError DOMException.
Syntax
Permissions-Policy: summarizer=<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 summarizer is self.
Specifications
| Specification |
|---|
| Writing Assistance APIs> # summarizer-permissions-policy> |
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 | |
summarizer |
138 | 138 | No | 122 | No | No | No | No | No | No | No | No |
See also
© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Permissions-Policy/summarizer
