Permissions-Policy: usb
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The HTTP Permissions-Policy
header usb
directive controls whether the current document is allowed to use the WebUSB API.
Specifically, where a defined policy blocks WebHID usage, the Navigator.usb
property will not be available.
Syntax
http
Permissions-Policy: usb=<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 usb
is self
.
Specifications
Specification |
---|
WebUSB API # permissions-policy |
Browser compatibility
BCD tables only load in the browser