Feature-Policy: autoplay

The HTTP Feature-Policy header autoplay directive controls whether the current document is allowed to autoplay media requested through the HTMLMediaElement interface. When this policy is enabled and there were no user gestures, the Promise returned by HTMLMediaElement.play() will reject with a DOMException. The autoplay attribute on <audio> and <video> elements will be ignored.

Syntax

Feature-Policy: autoplay <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