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WorkerGlobalScope: online event

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Note: This feature is only available in Web Workers.

The online event of the WorkerGlobalScope fires when the device reconnects to the internet.

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

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

ononline = (event) => { }

A generic Event.

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

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

The same snippet, but using addEventListener():

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

Specification
HTML> # handler-workerglobalscope-ononline>

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`online_event`	No	No	29	No	8	No	29	No	8	No	No	8