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MediaEncryptedEvent: initData property

files/en-us/web/api/mediaencryptedevent/initdata/index.md

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{{APIRef("Encrypted Media Extensions")}}

The read-only initData property of the {{domxref("MediaKeyMessageEvent")}} returns the initialization data contained in this event, if any.

Value

An {{jsxref("ArrayBuffer")}} with the initialization data, or null if there are none.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}