[ServiceWorker] WindowClient.navigate() for the same origin but off-scope clients (#752)

@romandev asked this question while implementing `navigate()` in Blink.

The spec currently disallows navigate() for off-scope clients. (See [navigate(url) step 4](https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#client-navigate))

E.g. a SW can get an off-scope client by
 - `clients.matchAll({ includeUncontrolled: true })`
 - `client.navigate(to-off-scope-url).then(off-scope-client => { off-scope-client.navigate(url); })

And those reject with a TypeError. Was it intended? Should we allow the same origin but off-scope clients to navigate?

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Reply to this email directly or view it on GitHub:
https://github.com/slightlyoff/ServiceWorker/issues/752