web api event

WorkerGlobalScope: offline event

Available in workers

The offline event of the WorkerGlobalScope fires when the device loses connection to the internet.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("offline", (event) => { })

onoffline = (event) => { }

A generic Event.

The following code snippet shows an onoffline handler set inside a worker:

self.onoffline = () => {
  console.log("Your worker is now offline");
};

The same snippet, but using addEventListener():

self.addEventListener("offline", () => {
  console.log("Your worker is now offline");
});

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibilityCompatibility data is available on the canonical MDN page.