ServiceWorker: error event
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The error
event fires whenever an error occurs in the service worker.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
js
addEventListener("error", (event) => {});
onerror = (event) => {};
Event type
A generic Event
.
Example
The following code snippet gets a handle to the ServiceWorker
object via ServiceWorkerRegistration.active
and sets up an onerror
handler on the resulting object:
js
// in the page being controlled
if (navigator.serviceWorker) {
navigator.serviceWorker.register("service-worker.js");
navigator.serviceWorker.ready.then((registration) => {
registration.active.onerror = (event) => {
console.log("An error occurred in the service worker!");
};
});
}
Specifications
Specification |
---|
HTML Standard # handler-abstractworker-onerror |
Browser compatibility
BCD tables only load in the browser