ServiceWorkerContainer: controllerchange event
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is available in Web Workers.
The controllerchange
event of the ServiceWorkerContainer
interface fires when the document's associated ServiceWorkerRegistration
acquires a new active
worker.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
js
addEventListener("controllerchange", (event) => {});
oncontrollerchange = (event) => {};
Event type
A generic Event
.
Example
js
navigator.serviceWorker.addEventListener("controllerchange", () => {
console.log("The controller of current browsing context has changed.");
});
Specifications
Specification |
---|
Service Workers # dom-serviceworkercontainer-oncontrollerchange |
Browser compatibility
BCD tables only load in the browser