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Feature-Policy: encrypted-media

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

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

Specification Status Comment
Feature Policy Draft Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 59 No No No 48 No
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 59 59 No No 48 No No

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Feature-Policy/encrypted-media