The index
read-only property of the ServiceWorkerRegistration
interface returns a reference to the ContentIndex
interface, which allows for indexing of offline content.
ServiceWorkerRegistration.index
Value
A ContentIndex
object.
Examples
You can access the property from either your main script or the registered service worker.
Here is an example from the main script:
// reference registration const registration = await navigator.serviceWorker.ready; // feature detection if ('index' in registration) { // Content Index API functionality const contentIndex = registration.index; }
From the service worker:
// service worker script const contentIndex = self.registration.index;
Specifications
Specification |
---|
Content Index # dom-serviceworkerregistration-index |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
index |
No
|
No
|
No
|
No
|
No
|
No
|
84
|
84
|
No
|
60
|
No
|
14.0
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerRegistration/index