Permissions-Policy: window-management
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 window-management directive controls whether or not the current document is allowed to use the Window Management API to manage windows on multiple displays.
Where this policy forbids use of the API:
- The
Promisereturned by theWindow.getScreenDetails()method will reject with aNotAllowedErrorexception. - The
Window.screen.isExtendedproperty will always returnfalse.
Syntax
http
Permissions-Policy: window-management=<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 window-management is self.
Specifications
| Specification |
|---|
| Window Management # api-permission-policy-integration |
Browser compatibility
BCD tables only load in the browser