MediaDeviceInfo: deviceId property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.
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Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The deviceId read-only property
of the MediaDeviceInfo interface returns a string
that is an identifier for the represented device and is persisted across
sessions.
It is un-guessable by other applications, and unique to the origin of the calling application. It is reset when the user clears cookies. For private browsing, a different identifier is used that is not persisted across sessions.
Value
A string.
Specifications
| Specification |
|---|
| Media Capture and Streams # dom-mediadeviceinfo-deviceid |