Screen wake lock

The wakeLock read-only property of the Navigator interface returns a WakeLock interface that allows a document to acquire a screen wake lock. While a screen wake lock is active, the user agent will try to prevent the device from dimming the screen, turning it off completely, or showing a screensaver.

`screen-wake-lock` permission

The request() method of the WakeLock interface returns a Promise that fulfills with a WakeLockSentinel object if the system screen wake lock is granted.

The WakeLockSentinel interface of the Screen Wake Lock API can be used to monitor the status of the platform screen wake lock, and manually release the lock when needed.

The release() method of the WakeLockSentinel interface releases the WakeLockSentinel, returning a Promise that is resolved once the sentinel has been successfully released.

The release event of the WakeLockSentinel interface is fired when the sentinel object's handle has been released.

The released read-only property of the WakeLockSentinel interface returns a boolean that indicates whether a WakeLockSentinel has been released.

The type read-only property of the WakeLockSentinel interface returns a string representation of the currently acquired WakeLockSentinel type.

The HTTP Permissions-Policy header screen-wake-lock directive controls whether the current document is allowed to use Screen Wake Lock API to indicate that the device should not dim or turn off the screen.