options read-only property
PushSubscription interface is an object containing the options
used to create the subscription.
var options = PushSubscription.options
PushSubscriptionOptions object containing the following values:
userVisibleOnly: A boolean, indicating that the returned push subscription will only be used for messages whose effect is made visible to the user.
applicationServerKey: A public key your push server will use to send messages to client apps via a push server. This value is part of a signing key pair generated by your application server, and usable with elliptic curve digital signature (ECDSA), over the P-256 curve.
The definition of 'options' in that specification.
|Working Draft||Initial definition.|
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