WakeLock

The WakeLock interface of the Screen Wake Lock API prevents device screens from dimming or locking when an application needs to keep running.

The system wake lock is exposed through the global Navigator.wakelock property.

Methods

request

Requests a WakeLockSentinel object, which returns a Promise that resolves with a WakeLockSentinel object.

Examples

The following asynchronous function requests a WakeLockSentinel object. The WakeLock.request method is wrapped in a try...catch statement to account for if the browser refuses the request for any reason.

const requestWakeLock = async () => {
  try {

    const wakeLock = await navigator.wakeLock.request('screen');

  } catch (err) {
    // the wake lock request fails - usually system related, such low as battery

    console.log(`${err.name}, ${err.message}`);
  }
}

requestWakeLock();

Specifications

Browser compatibility