Create a new fragment.
The options to create the fragment.
ReadonlycryptoThe encryption mode to use.
ReadonlyseedThe encryption seed.
ReadonlyselfWhether the fragment should self-destruct after being read.
ReadonlyserverThe API server to use.
Mainly used by the @not3/ui. As we do not want to send the encryption details to the server, we use this class to store and parse the details from the fragment block of the URL.