ServiceWorkerRegistration.update() should return Promise<ServiceWorkerRegistration>

[jespertheend]

Currently it is defined in lib.dom.ts to return Promise<void>.

See the MDN page for update() which mentions:

Return value
A Promise that resolves with a ServiceWorkerRegistration object.

The spec is a bit unclear because it mentions some job logic:

6. Let job be the result of running Create Job with update

but in the end it seems like this promise is always resolved with a ServiceWorkerRegistration.

[skyclouds2001]

but the spec idl says this method return void, though in browser implement is seems to return with a ServiceWorkerRegistration

[jespertheend]

Hmm interesting, seems like an issue was submitted about this 5 years ago but it has never been addressed.