[w3c/push-api] Allow UA to not implement all PushSubscriptionOptions (#200)

These need to be truly optional.  If a UA doesn't implement X, then it shouldn't be obliged to remember values that were set by applications.

---
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/w3c/push-api/issues/200

Received on Tuesday, 12 July 2016 23:26:25 UTC