Permissions-Policy: compute-pressure

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The HTTP Permissions-Policy header compute-pressure directive controls access to the Compute Pressure API.

Syntax

http
Permissions-Policy: compute-pressure=<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 compute-pressure is self allowing usage in same-origin nested frames but preventing third-party content from using the feature. Workers (dedicated and shared) adhere to the permission policy set by their owning document(s).

Examples

Enabling compute pressure on third-party content

Third-party usage can be selectively enabled using the allow attribute on <iframe> elements:

html
<iframe src="https://example.com" allow="compute-pressure"></iframe>

Disabling the Compute Pressure API completely

This HTTP response header disables compute pressure completely:

http
Permissions-Policy: {"compute-pressure": []}

Specifications

Specification
Compute Pressure Level 1
# policy-control

Browser compatibility

BCD tables only load in the browser

See also