ReadonlyappReadonlyappReadonlyappReadonlyclipboardAvailable only in secure contexts.
ReadonlycookieReadonlycredentialsAvailable only in secure contexts.
ReadonlydoReadonlygeolocationReadonlyhardwareReadonlylanguageReadonlylanguagesReadonlylocksReadonlymaxReadonlymediaReadonlymediaAvailable only in secure contexts.
ReadonlymediaReadonlymimeReadonlyonReadonlypdfReadonlypermissionsReadonlyplatformReadonlypluginsReadonlyproductReadonlyproductReadonlyserviceAvailable only in secure contexts.
ReadonlystorageReadonlyuserReadonlyuserReadonlyvendorReadonlyvendorReadonlywakeReadonlywebdriverAvailable only in secure contexts.
Available only in secure contexts.
Available only in secure contexts.
Optionaloptions: MIDIOptions
The state and the identity of the user agent. It allows scripts to query it and to register themselves to carry on some activities.
MDN Reference