This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.
Note: This feature is only available in Service Workers.
The id read-only property of the Client interface returns the universally unique identifier of the Client object.
A string uniquely identifying the object.
| Specification |
|---|
| Service Workers> # client-id> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
id |
40 | 17 | 44 | 27 | 11.1 | 40 | 44 | 27 | 11.3 | 4.0 | 40 | No |
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https://developer.mozilla.org/en-US/docs/Web/API/Client/id