Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The HTTP Permissions-Policy header local-fonts directive controls whether the current document is allowed to gather data on the user's locally-installed fonts via the Window.queryLocalFonts() method.
Specifically, where a defined policy blocks use of this feature, Promises returned by Window.queryLocalFonts() will reject with a DOMException of type SecurityError.
Permissions-Policy: local-fonts=<allowlist>;<allowlist>A list of origins for which permission is granted to use the feature. See Permissions-Policy > Syntax for more details.
The default allowlist for local-fonts is self.