FetchEvent: clientId property
Baseline
Widely available
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 clientId read-only property of the
Client that the
current service worker is controlling.
The Clients.get() method could then be passed this ID to retrieve the
associated client.
Value
A string that represents the client ID.
Examples
js
self.addEventListener("fetch", (event) => {
console.log(event.clientId);
});
Specifications
| Specification |
|---|
| Service Workers Nightly # fetch-event-clientid |