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Client: id property - Web APIs | MDN
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Client: id property

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its 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.

In this article

Value

A string uniquely identifying the object.

Specifications

Specification
Service Workers Nightly
# client-id

Browser compatibility

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This page was last modified on May 13, 2024 by MDN contributors.

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  1. Service Worker API
  2. Client
  3. Instance properties
    1. frameType
    2. id
    3. type
    4. url
  4. Instance methods
    1. postMessage()
  5. Related pages for Service Workers API
    1. Cache
    2. CacheStorage
    3. Clients
    4. ExtendableEvent
    5. ExtendableMessageEvent
    6. FetchEvent
    7. InstallEvent
    8. NavigationPreloadManager
    9. Navigator.serviceWorker
    10. ServiceWorker
    11. ServiceWorkerContainer
    12. ServiceWorkerGlobalScope
    13. ServiceWorkerRegistration
    14. Window.caches
    15. WindowClient
    16. WorkerGlobalScope.caches
    17. WorkerNavigator.serviceWorker
  6. Guides
    1. Using Service Workers
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