Feature-Policy: encrypted-media

The HTTP Feature-Policy header encrypted-media directive controls whether the current document is allowed to use the Encrypted Media Extensions API (EME). When this policy is enabled, the Promise returned by Navigator.requestMediaKeySystemAccess() will reject with a DOMException.

Syntax

Feature-Policy: encrypted-media <allowlist>;

<allowlist>

The allowlist is a list of origins that takes one of the following values:

• *: The feature is allowed by default in top-level browsing contexts and all nested browsing contexts (iframes).
• 'self': (Default) The feature is allowed by default in top-level browsing contexts and in nested browsing contexts (iframes) in the same origin. The feature is not allowed in cross-origin documents in nested browsing contexts.
• 'none': The feature is disabled in top-level and nested browsing contexts.
• <origin(s)>: The feature is allowed for specific origins (for example, https://example.com). Origins should be separated by a space.

The values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' may be used with one or more origins.

The default value is 'self'.

Specifications

Browser compatibilityUpdate compatibility data on GitHub

See also

• Feature-Policy header
• Feature Policy
• Using Feature Policy