See https://github.com/w3c/push-api/issues/74 and https://github.com/w3c/push-api/issues/82 for more details on when and why registrations might expire in a typical push service.
On 22 October 2014 16:33, Martin Thomson <martin.thom...@gmail.com> wrote: > On 21 October 2014 12:14, Shijun Sun <shij...@microsoft.com> wrote: > > 1. What is the typical lifetime expected for a PushRegistration? > > mu. There's only the expectation that the registration is useful. > > > 2. IF a PushRegistration can expire, what would be the right option(s) > to "renew" the push service? > > They certainly can expire, but the idea is that you would receive some > notification (currently badly named `pushregistrationlost`) when that > happens. > >